Finding the Fourth Proportional to 1,550.88, 2,141.15 and 1,020.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.88 : 2,141.15 = 1,020.60 : x
2. Step 2: Convert to fraction form
   1,550.88/2,141.15 = 1,020.60/x
3. Step 3: Cross multiply
   1,550.88x = 2,141.15 × 1,020.60
4. Step 4: Simplify right side
   1,550.88x = 2,185,252.59
5. Step 5: Solve for x
   x = 2,185,252.59/1,550.88
6. Step 6: Final answer
   x = 1,409.04