Finding the Fourth Proportional to 1,757.16, 2,426.52 and 1,340.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,757.16 : 2,426.52 = 1,340.40 : x
2. Step 2: Convert to fraction form
   1,757.16/2,426.52 = 1,340.40/x
3. Step 3: Cross multiply
   1,757.16x = 2,426.52 × 1,340.40
4. Step 4: Simplify right side
   1,757.16x = 3,252,507.41
5. Step 5: Solve for x
   x = 3,252,507.41/1,757.16
6. Step 6: Final answer
   x = 1,851.00