Finding the Fourth Proportional to 2,380.73, 3,569.02 and 918.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.73 : 3,569.02 = 918.86 : x
2. Step 2: Convert to fraction form
   2,380.73/3,569.02 = 918.86/x
3. Step 3: Cross multiply
   2,380.73x = 3,569.02 × 918.86
4. Step 4: Simplify right side
   2,380.73x = 3,279,409.57
5. Step 5: Solve for x
   x = 3,279,409.57/2,380.73
6. Step 6: Final answer
   x = 1,377.48