Finding the Fourth Proportional to 1,921.02, 2,650.83 and 1,124.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.02 : 2,650.83 = 1,124.43 : x
2. Step 2: Convert to fraction form
   1,921.02/2,650.83 = 1,124.43/x
3. Step 3: Cross multiply
   1,921.02x = 2,650.83 × 1,124.43
4. Step 4: Simplify right side
   1,921.02x = 2,980,673.53
5. Step 5: Solve for x
   x = 2,980,673.53/1,921.02
6. Step 6: Final answer
   x = 1,551.61