Finding the Fourth Proportional to 1,758.30, 2,426.43 and 972.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.30 : 2,426.43 = 972.30 : x
2. Step 2: Convert to fraction form
   1,758.30/2,426.43 = 972.30/x
3. Step 3: Cross multiply
   1,758.30x = 2,426.43 × 972.30
4. Step 4: Simplify right side
   1,758.30x = 2,359,217.89
5. Step 5: Solve for x
   x = 2,359,217.89/1,758.30
6. Step 6: Final answer
   x = 1,341.76