Finding the Fourth Proportional to 1,373.71, 1,895.94 and 876.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.71 : 1,895.94 = 876.55 : x
2. Step 2: Convert to fraction form
   1,373.71/1,895.94 = 876.55/x
3. Step 3: Cross multiply
   1,373.71x = 1,895.94 × 876.55
4. Step 4: Simplify right side
   1,373.71x = 1,661,886.21
5. Step 5: Solve for x
   x = 1,661,886.21/1,373.71
6. Step 6: Final answer
   x = 1,209.78