Finding the Fourth Proportional to 1,293,089.43, 1,784,603.55 and 712,372.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,293,089.43 : 1,784,603.55 = 712,372.05 : x
2. Step 2: Convert to fraction form
   1,293,089.43/1,784,603.55 = 712,372.05/x
3. Step 3: Cross multiply
   1,293,089.43x = 1,784,603.55 × 712,372.05
4. Step 4: Simplify right side
   1,293,089.43x = 1,271,301,689,350.78
5. Step 5: Solve for x
   x = 1,271,301,689,350.78/1,293,089.43
6. Step 6: Final answer
   x = 983,150.63