Finding the Fourth Proportional to 1,671.72, 2,506.02 and 1,124.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671.72 : 2,506.02 = 1,124.10 : x
2. Step 2: Convert to fraction form
   1,671.72/2,506.02 = 1,124.10/x
3. Step 3: Cross multiply
   1,671.72x = 2,506.02 × 1,124.10
4. Step 4: Simplify right side
   1,671.72x = 2,817,017.08
5. Step 5: Solve for x
   x = 2,817,017.08/1,671.72
6. Step 6: Final answer
   x = 1,685.10