Finding the Fourth Proportional to 2,124.57, 2,931.87 and 1,180.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.57 : 2,931.87 = 1,180.37 : x
2. Step 2: Convert to fraction form
   2,124.57/2,931.87 = 1,180.37/x
3. Step 3: Cross multiply
   2,124.57x = 2,931.87 × 1,180.37
4. Step 4: Simplify right side
   2,124.57x = 3,460,691.39
5. Step 5: Solve for x
   x = 3,460,691.39/2,124.57
6. Step 6: Final answer
   x = 1,628.89