Finding the Fourth Proportional to 2,531.52, 3,493.36 and 1,587.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,531.52 : 3,493.36 = 1,587.76 : x
2. Step 2: Convert to fraction form
   2,531.52/3,493.36 = 1,587.76/x
3. Step 3: Cross multiply
   2,531.52x = 3,493.36 × 1,587.76
4. Step 4: Simplify right side
   2,531.52x = 5,546,617.27
5. Step 5: Solve for x
   x = 5,546,617.27/2,531.52
6. Step 6: Final answer
   x = 2,191.02