Finding the Fourth Proportional to 2,131.60, 2,935.56 and 1,541.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.60 : 2,935.56 = 1,541.20 : x
2. Step 2: Convert to fraction form
   2,131.60/2,935.56 = 1,541.20/x
3. Step 3: Cross multiply
   2,131.60x = 2,935.56 × 1,541.20
4. Step 4: Simplify right side
   2,131.60x = 4,524,285.07
5. Step 5: Solve for x
   x = 4,524,285.07/2,131.60
6. Step 6: Final answer
   x = 2,122.48