Finding the Fourth Proportional to 1,574.72, 2,173.07 and 876.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.72 : 2,173.07 = 876.10 : x
2. Step 2: Convert to fraction form
   1,574.72/2,173.07 = 876.10/x
3. Step 3: Cross multiply
   1,574.72x = 2,173.07 × 876.10
4. Step 4: Simplify right side
   1,574.72x = 1,903,826.63
5. Step 5: Solve for x
   x = 1,903,826.63/1,574.72
6. Step 6: Final answer
   x = 1,208.99