Finding the Fourth Proportional to 2,587.50, 3,878.88 and 943.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.50 : 3,878.88 = 943.56 : x
2. Step 2: Convert to fraction form
   2,587.50/3,878.88 = 943.56/x
3. Step 3: Cross multiply
   2,587.50x = 3,878.88 × 943.56
4. Step 4: Simplify right side
   2,587.50x = 3,659,956.01
5. Step 5: Solve for x
   x = 3,659,956.01/2,587.50
6. Step 6: Final answer
   x = 1,414.48