Finding the Fourth Proportional to 924,978.84, 1,387,448.82 and 426,342.84

Step by Step Solution

1. Step 1: Write the proportion equation
   924,978.84 : 1,387,448.82 = 426,342.84 : x
2. Step 2: Convert to fraction form
   924,978.84/1,387,448.82 = 426,342.84/x
3. Step 3: Cross multiply
   924,978.84x = 1,387,448.82 × 426,342.84
4. Step 4: Simplify right side
   924,978.84x = 591,528,870,273.45
5. Step 5: Solve for x
   x = 591,528,870,273.45/924,978.84
6. Step 6: Final answer
   x = 639,505.30