Finding the Fourth Proportional to 1,758.38, 2,633.78 and 1,140.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.38 : 2,633.78 = 1,140.28 : x
2. Step 2: Convert to fraction form
   1,758.38/2,633.78 = 1,140.28/x
3. Step 3: Cross multiply
   1,758.38x = 2,633.78 × 1,140.28
4. Step 4: Simplify right side
   1,758.38x = 3,003,242.92
5. Step 5: Solve for x
   x = 3,003,242.92/1,758.38
6. Step 6: Final answer
   x = 1,707.96