Finding the Fourth Proportional to 1,758.35, 2,426.67 and 1,012.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.35 : 2,426.67 = 1,012.55 : x
2. Step 2: Convert to fraction form
   1,758.35/2,426.67 = 1,012.55/x
3. Step 3: Cross multiply
   1,758.35x = 2,426.67 × 1,012.55
4. Step 4: Simplify right side
   1,758.35x = 2,457,124.71
5. Step 5: Solve for x
   x = 2,457,124.71/1,758.35
6. Step 6: Final answer
   x = 1,397.40