Finding the Fourth Proportional to 2,650.71, 3,657.91 and 1,531.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.71 : 3,657.91 = 1,531.56 : x
2. Step 2: Convert to fraction form
   2,650.71/3,657.91 = 1,531.56/x
3. Step 3: Cross multiply
   2,650.71x = 3,657.91 × 1,531.56
4. Step 4: Simplify right side
   2,650.71x = 5,602,308.64
5. Step 5: Solve for x
   x = 5,602,308.64/2,650.71
6. Step 6: Final answer
   x = 2,113.51