Finding the Fourth Proportional to 1,061,972.18, 1,592,001.76 and 387,580.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,972.18 : 1,592,001.76 = 387,580.29 : x
2. Step 2: Convert to fraction form
   1,061,972.18/1,592,001.76 = 387,580.29/x
3. Step 3: Cross multiply
   1,061,972.18x = 1,592,001.76 × 387,580.29
4. Step 4: Simplify right side
   1,061,972.18x = 617,028,503,821.31
5. Step 5: Solve for x
   x = 617,028,503,821.31/1,061,972.18
6. Step 6: Final answer
   x = 581,021.34