Finding the Fourth Proportional to 2,124.31, 2,931.54 and 1,180.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.31 : 2,931.54 = 1,180.27 : x
2. Step 2: Convert to fraction form
   2,124.31/2,931.54 = 1,180.27/x
3. Step 3: Cross multiply
   2,124.31x = 2,931.54 × 1,180.27
4. Step 4: Simplify right side
   2,124.31x = 3,460,008.72
5. Step 5: Solve for x
   x = 3,460,008.72/2,124.31
6. Step 6: Final answer
   x = 1,628.77