Finding the Fourth Proportional to 1,920.57, 2,651.22 and 1,134.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.57 : 2,651.22 = 1,134.69 : x
2. Step 2: Convert to fraction form
   1,920.57/2,651.22 = 1,134.69/x
3. Step 3: Cross multiply
   1,920.57x = 2,651.22 × 1,134.69
4. Step 4: Simplify right side
   1,920.57x = 3,008,312.82
5. Step 5: Solve for x
   x = 3,008,312.82/1,920.57
6. Step 6: Final answer
   x = 1,566.36