Finding the Fourth Proportional to 1,061,260.53, 1,592,139.90 and 351,288.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,260.53 : 1,592,139.90 = 351,288.56 : x
2. Step 2: Convert to fraction form
   1,061,260.53/1,592,139.90 = 351,288.56/x
3. Step 3: Cross multiply
   1,061,260.53x = 1,592,139.90 × 351,288.56
4. Step 4: Simplify right side
   1,061,260.53x = 559,300,536,111.23
5. Step 5: Solve for x
   x = 559,300,536,111.23/1,061,260.53
6. Step 6: Final answer
   x = 527,015.30