Finding the Fourth Proportional to 1,758.99, 2,427.15 and 1,012.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.99 : 2,427.15 = 1,012.86 : x
2. Step 2: Convert to fraction form
   1,758.99/2,427.15 = 1,012.86/x
3. Step 3: Cross multiply
   1,758.99x = 2,427.15 × 1,012.86
4. Step 4: Simplify right side
   1,758.99x = 2,458,363.15
5. Step 5: Solve for x
   x = 2,458,363.15/1,758.99
6. Step 6: Final answer
   x = 1,397.60