Finding the Fourth Proportional to 1,126.31, 1,554.25 and 684.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,126.31 : 1,554.25 = 684.46 : x
2. Step 2: Convert to fraction form
   1,126.31/1,554.25 = 684.46/x
3. Step 3: Cross multiply
   1,126.31x = 1,554.25 × 684.46
4. Step 4: Simplify right side
   1,126.31x = 1,063,826.62
5. Step 5: Solve for x
   x = 1,063,826.62/1,126.31
6. Step 6: Final answer
   x = 944.53