Finding the Fourth Proportional to 1,143.36, 1,706.58 and 1,026.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143.36 : 1,706.58 = 1,026.72 : x
2. Step 2: Convert to fraction form
   1,143.36/1,706.58 = 1,026.72/x
3. Step 3: Cross multiply
   1,143.36x = 1,706.58 × 1,026.72
4. Step 4: Simplify right side
   1,143.36x = 1,752,179.82
5. Step 5: Solve for x
   x = 1,752,179.82/1,143.36
6. Step 6: Final answer
   x = 1,532.48