Finding the Fourth Proportional to 2,649.89, 3,657.51 and 1,531.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,649.89 : 3,657.51 = 1,531.47 : x
2. Step 2: Convert to fraction form
   2,649.89/3,657.51 = 1,531.47/x
3. Step 3: Cross multiply
   2,649.89x = 3,657.51 × 1,531.47
4. Step 4: Simplify right side
   2,649.89x = 5,601,366.84
5. Step 5: Solve for x
   x = 5,601,366.84/2,649.89
6. Step 6: Final answer
   x = 2,113.82