Finding the Fourth Proportional to 1,373.18, 1,895.27 and 876.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.18 : 1,895.27 = 876.31 : x
2. Step 2: Convert to fraction form
   1,373.18/1,895.27 = 876.31/x
3. Step 3: Cross multiply
   1,373.18x = 1,895.27 × 876.31
4. Step 4: Simplify right side
   1,373.18x = 1,660,834.93
5. Step 5: Solve for x
   x = 1,660,834.93/1,373.18
6. Step 6: Final answer
   x = 1,209.49