Finding the Fourth Proportional to 2,455,401,137.16, 3,683,048,527.89 and 684,724,610.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,455,401,137.16 : 3,683,048,527.89 = 684,724,610.55 : x
2. Step 2: Convert to fraction form
   2,455,401,137.16/3,683,048,527.89 = 684,724,610.55/x
3. Step 3: Cross multiply
   2,455,401,137.16x = 3,683,048,527.89 × 684,724,610.55
4. Step 4: Simplify right side
   2,455,401,137.16x = 2,521,873,968,896,230,912
5. Step 5: Solve for x
   x = 2,521,873,968,896,230,912/2,455,401,137.16
6. Step 6: Final answer
   x = 1,027,072,086.40