Finding the Fourth Proportional to 1,758.42, 2,426.49 and 1,012.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.42 : 2,426.49 = 1,012.35 : x
2. Step 2: Convert to fraction form
   1,758.42/2,426.49 = 1,012.35/x
3. Step 3: Cross multiply
   1,758.42x = 2,426.49 × 1,012.35
4. Step 4: Simplify right side
   1,758.42x = 2,456,457.15
5. Step 5: Solve for x
   x = 2,456,457.15/1,758.42
6. Step 6: Final answer
   x = 1,396.97