Finding the Fourth Proportional to 2,650.35, 3,657.38 and 1,531.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.35 : 3,657.38 = 1,531.61 : x
2. Step 2: Convert to fraction form
   2,650.35/3,657.38 = 1,531.61/x
3. Step 3: Cross multiply
   2,650.35x = 3,657.38 × 1,531.61
4. Step 4: Simplify right side
   2,650.35x = 5,601,653.84
5. Step 5: Solve for x
   x = 5,601,653.84/2,650.35
6. Step 6: Final answer
   x = 2,113.55