Finding the Fourth Proportional to 1,030,532.78, 1,543,355.57 and 816,612.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,030,532.78 : 1,543,355.57 = 816,612.89 : x
2. Step 2: Convert to fraction form
   1,030,532.78/1,543,355.57 = 816,612.89/x
3. Step 3: Cross multiply
   1,030,532.78x = 1,543,355.57 × 816,612.89
4. Step 4: Simplify right side
   1,030,532.78x = 1,260,324,055,321.43
5. Step 5: Solve for x
   x = 1,260,324,055,321.43/1,030,532.78
6. Step 6: Final answer
   x = 1,222,982.99