Finding the Fourth Proportional to 1,499.25, 2,068.96 and 869.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.25 : 2,068.96 = 869.90 : x
2. Step 2: Convert to fraction form
   1,499.25/2,068.96 = 869.90/x
3. Step 3: Cross multiply
   1,499.25x = 2,068.96 × 869.90
4. Step 4: Simplify right side
   1,499.25x = 1,799,788.30
5. Step 5: Solve for x
   x = 1,799,788.30/1,499.25
6. Step 6: Final answer
   x = 1,200.46