Finding the Fourth Proportional to 1,498.93, 2,068.79 and 869.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.93 : 2,068.79 = 869.38 : x
2. Step 2: Convert to fraction form
   1,498.93/2,068.79 = 869.38/x
3. Step 3: Cross multiply
   1,498.93x = 2,068.79 × 869.38
4. Step 4: Simplify right side
   1,498.93x = 1,798,564.65
5. Step 5: Solve for x
   x = 1,798,564.65/1,498.93
6. Step 6: Final answer
   x = 1,199.90