Finding the Fourth Proportional to 1,146.38, 1,725.83 and 783.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.38 : 1,725.83 = 783.46 : x
2. Step 2: Convert to fraction form
   1,146.38/1,725.83 = 783.46/x
3. Step 3: Cross multiply
   1,146.38x = 1,725.83 × 783.46
4. Step 4: Simplify right side
   1,146.38x = 1,352,118.77
5. Step 5: Solve for x
   x = 1,352,118.77/1,146.38
6. Step 6: Final answer
   x = 1,179.47