Finding the Fourth Proportional to 782,978.89, 1,080,459.69 and 460,626.70

Step by Step Solution

1. Step 1: Write the proportion equation
   782,978.89 : 1,080,459.69 = 460,626.70 : x
2. Step 2: Convert to fraction form
   782,978.89/1,080,459.69 = 460,626.70/x
3. Step 3: Cross multiply
   782,978.89x = 1,080,459.69 × 460,626.70
4. Step 4: Simplify right side
   782,978.89x = 497,688,581,487.72
5. Step 5: Solve for x
   x = 497,688,581,487.72/782,978.89
6. Step 6: Final answer
   x = 635,634.74