Finding the Fourth Proportional to 914,522.56, 1,262,478.72 and 609,107.20

Step by Step Solution

1. Step 1: Write the proportion equation
   914,522.56 : 1,262,478.72 = 609,107.20 : x
2. Step 2: Convert to fraction form
   914,522.56/1,262,478.72 = 609,107.20/x
3. Step 3: Cross multiply
   914,522.56x = 1,262,478.72 × 609,107.20
4. Step 4: Simplify right side
   914,522.56x = 768,984,878,198.78
5. Step 5: Solve for x
   x = 768,984,878,198.78/914,522.56
6. Step 6: Final answer
   x = 840,859.39