Finding the Fourth Proportional to 1,758.51, 2,426.79 and 972.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.51 : 2,426.79 = 972.57 : x
2. Step 2: Convert to fraction form
   1,758.51/2,426.79 = 972.57/x
3. Step 3: Cross multiply
   1,758.51x = 2,426.79 × 972.57
4. Step 4: Simplify right side
   1,758.51x = 2,360,223.15
5. Step 5: Solve for x
   x = 2,360,223.15/1,758.51
6. Step 6: Final answer
   x = 1,342.17