Finding the Fourth Proportional to 1,921.60, 2,650.52 and 1,552.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.60 : 2,650.52 = 1,552.55 : x
2. Step 2: Convert to fraction form
   1,921.60/2,650.52 = 1,552.55/x
3. Step 3: Cross multiply
   1,921.60x = 2,650.52 × 1,552.55
4. Step 4: Simplify right side
   1,921.60x = 4,115,057.06
5. Step 5: Solve for x
   x = 4,115,057.06/1,921.60
6. Step 6: Final answer
   x = 2,141.48