Finding the Fourth Proportional to 1,015,708.38, 1,401,673.59 and 556,825.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,708.38 : 1,401,673.59 = 556,825.50 : x
2. Step 2: Convert to fraction form
   1,015,708.38/1,401,673.59 = 556,825.50/x
3. Step 3: Cross multiply
   1,015,708.38x = 1,401,673.59 × 556,825.50
4. Step 4: Simplify right side
   1,015,708.38x = 780,487,597,588.55
5. Step 5: Solve for x
   x = 780,487,597,588.55/1,015,708.38
6. Step 6: Final answer
   x = 768,417.01