Finding the Fourth Proportional to 1,758.47, 2,426.69 and 972.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.47 : 2,426.69 = 972.57 : x
2. Step 2: Convert to fraction form
   1,758.47/2,426.69 = 972.57/x
3. Step 3: Cross multiply
   1,758.47x = 2,426.69 × 972.57
4. Step 4: Simplify right side
   1,758.47x = 2,360,113.75
5. Step 5: Solve for x
   x = 2,360,113.75/1,758.47
6. Step 6: Final answer
   x = 1,342.14