Finding the Fourth Proportional to 2,632.50, 3,946.32 and 987.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.50 : 3,946.32 = 987.93 : x
2. Step 2: Convert to fraction form
   2,632.50/3,946.32 = 987.93/x
3. Step 3: Cross multiply
   2,632.50x = 3,946.32 × 987.93
4. Step 4: Simplify right side
   2,632.50x = 3,898,687.92
5. Step 5: Solve for x
   x = 3,898,687.92/2,632.50
6. Step 6: Final answer
   x = 1,480.98