Finding the Fourth Proportional to 887,076.84, 1,224,166.56 and 479,178.72

Step by Step Solution

1. Step 1: Write the proportion equation
   887,076.84 : 1,224,166.56 = 479,178.72 : x
2. Step 2: Convert to fraction form
   887,076.84/1,224,166.56 = 479,178.72/x
3. Step 3: Cross multiply
   887,076.84x = 1,224,166.56 × 479,178.72
4. Step 4: Simplify right side
   887,076.84x = 586,594,565,287.60
5. Step 5: Solve for x
   x = 586,594,565,287.60/887,076.84
6. Step 6: Final answer
   x = 661,266.91