Finding the Fourth Proportional to 1,758.60, 2,426.88 and 972.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.60 : 2,426.88 = 972.69 : x
2. Step 2: Convert to fraction form
   1,758.60/2,426.88 = 972.69/x
3. Step 3: Cross multiply
   1,758.60x = 2,426.88 × 972.69
4. Step 4: Simplify right side
   1,758.60x = 2,360,601.91
5. Step 5: Solve for x
   x = 2,360,601.91/1,758.60
6. Step 6: Final answer
   x = 1,342.32