Finding the Fourth Proportional to 1,499, 2,068.89 and 869.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499 : 2,068.89 = 869.96 : x
2. Step 2: Convert to fraction form
   1,499/2,068.89 = 869.96/x
3. Step 3: Cross multiply
   1,499x = 2,068.89 × 869.96
4. Step 4: Simplify right side
   1,499x = 1,799,851.54
5. Step 5: Solve for x
   x = 1,799,851.54/1,499
6. Step 6: Final answer
   x = 1,200.70