Finding the Fourth Proportional to 2,541.59, 3,507.40 and 1,422.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,541.59 : 3,507.40 = 1,422.55 : x
2. Step 2: Convert to fraction form
   2,541.59/3,507.40 = 1,422.55/x
3. Step 3: Cross multiply
   2,541.59x = 3,507.40 × 1,422.55
4. Step 4: Simplify right side
   2,541.59x = 4,989,438.30
5. Step 5: Solve for x
   x = 4,989,438.30/2,541.59
6. Step 6: Final answer
   x = 1,963.12