Finding the Fourth Proportional to 1,442.04, 1,990.13 and 852.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.04 : 1,990.13 = 852.69 : x
2. Step 2: Convert to fraction form
   1,442.04/1,990.13 = 852.69/x
3. Step 3: Cross multiply
   1,442.04x = 1,990.13 × 852.69
4. Step 4: Simplify right side
   1,442.04x = 1,696,967.15
5. Step 5: Solve for x
   x = 1,696,967.15/1,442.04
6. Step 6: Final answer
   x = 1,176.79