Finding the Fourth Proportional to 2,185,915.55, 3,278,870.42 and 588,480.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185,915.55 : 3,278,870.42 = 588,480.39 : x
2. Step 2: Convert to fraction form
   2,185,915.55/3,278,870.42 = 588,480.39/x
3. Step 3: Cross multiply
   2,185,915.55x = 3,278,870.42 × 588,480.39
4. Step 4: Simplify right side
   2,185,915.55x = 1,929,550,940,578.66
5. Step 5: Solve for x
   x = 1,929,550,940,578.66/2,185,915.55
6. Step 6: Final answer
   x = 882,719.80