Finding the Fourth Proportional to 1,015,683.18, 1,401,743.01 and 580,165.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,683.18 : 1,401,743.01 = 580,165.59 : x
2. Step 2: Convert to fraction form
   1,015,683.18/1,401,743.01 = 580,165.59/x
3. Step 3: Cross multiply
   1,015,683.18x = 1,401,743.01 × 580,165.59
4. Step 4: Simplify right side
   1,015,683.18x = 813,243,060,425.03
5. Step 5: Solve for x
   x = 813,243,060,425.03/1,015,683.18
6. Step 6: Final answer
   x = 800,685.76