Finding the Fourth Proportional to 1,258,598.72, 1,887,863.52 and 311,948.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258,598.72 : 1,887,863.52 = 311,948.48 : x
2. Step 2: Convert to fraction form
   1,258,598.72/1,887,863.52 = 311,948.48/x
3. Step 3: Cross multiply
   1,258,598.72x = 1,887,863.52 × 311,948.48
4. Step 4: Simplify right side
   1,258,598.72x = 588,916,155,511.45
5. Step 5: Solve for x
   x = 588,916,155,511.45/1,258,598.72
6. Step 6: Final answer
   x = 467,914.15