Finding the Fourth Proportional to 2,380.16, 3,569.83 and 918.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.16 : 3,569.83 = 918.11 : x
2. Step 2: Convert to fraction form
   2,380.16/3,569.83 = 918.11/x
3. Step 3: Cross multiply
   2,380.16x = 3,569.83 × 918.11
4. Step 4: Simplify right side
   2,380.16x = 3,277,503.25
5. Step 5: Solve for x
   x = 3,277,503.25/2,380.16
6. Step 6: Final answer
   x = 1,377.01