Finding the Fourth Proportional to 1,411.08, 1,947.42 and 938.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.08 : 1,947.42 = 938.15 : x
2. Step 2: Convert to fraction form
   1,411.08/1,947.42 = 938.15/x
3. Step 3: Cross multiply
   1,411.08x = 1,947.42 × 938.15
4. Step 4: Simplify right side
   1,411.08x = 1,826,962.34
5. Step 5: Solve for x
   x = 1,826,962.34/1,411.08
6. Step 6: Final answer
   x = 1,294.73