Finding the Fourth Proportional to 1,168.41, 1,610.04 and 990.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.41 : 1,610.04 = 990.82 : x
2. Step 2: Convert to fraction form
   1,168.41/1,610.04 = 990.82/x
3. Step 3: Cross multiply
   1,168.41x = 1,610.04 × 990.82
4. Step 4: Simplify right side
   1,168.41x = 1,595,259.83
5. Step 5: Solve for x
   x = 1,595,259.83/1,168.41
6. Step 6: Final answer
   x = 1,365.33