Finding the Fourth Proportional to 1,373.91, 1,896.24 and 876.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.91 : 1,896.24 = 876.70 : x
2. Step 2: Convert to fraction form
   1,373.91/1,896.24 = 876.70/x
3. Step 3: Cross multiply
   1,373.91x = 1,896.24 × 876.70
4. Step 4: Simplify right side
   1,373.91x = 1,662,433.61
5. Step 5: Solve for x
   x = 1,662,433.61/1,373.91
6. Step 6: Final answer
   x = 1,210.00