Finding the Fourth Proportional to 1,758.40, 2,426.55 and 972.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.40 : 2,426.55 = 972.49 : x
2. Step 2: Convert to fraction form
   1,758.40/2,426.55 = 972.49/x
3. Step 3: Cross multiply
   1,758.40x = 2,426.55 × 972.49
4. Step 4: Simplify right side
   1,758.40x = 2,359,795.61
5. Step 5: Solve for x
   x = 2,359,795.61/1,758.40
6. Step 6: Final answer
   x = 1,342.01