Finding the Fourth Proportional to 1,411.77, 1,945.10 and 938.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.77 : 1,945.10 = 938.84 : x
2. Step 2: Convert to fraction form
   1,411.77/1,945.10 = 938.84/x
3. Step 3: Cross multiply
   1,411.77x = 1,945.10 × 938.84
4. Step 4: Simplify right side
   1,411.77x = 1,826,123.26
5. Step 5: Solve for x
   x = 1,826,123.26/1,411.77
6. Step 6: Final answer
   x = 1,293.50