Finding the Fourth Proportional to 2,587.30, 3,882.51 and 943.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.30 : 3,882.51 = 943.99 : x
2. Step 2: Convert to fraction form
   2,587.30/3,882.51 = 943.99/x
3. Step 3: Cross multiply
   2,587.30x = 3,882.51 × 943.99
4. Step 4: Simplify right side
   2,587.30x = 3,665,050.61
5. Step 5: Solve for x
   x = 3,665,050.61/2,587.30
6. Step 6: Final answer
   x = 1,416.55