Finding the Fourth Proportional to 1,498.82, 2,068.40 and 869.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.82 : 2,068.40 = 869.36 : x
2. Step 2: Convert to fraction form
   1,498.82/2,068.40 = 869.36/x
3. Step 3: Cross multiply
   1,498.82x = 2,068.40 × 869.36
4. Step 4: Simplify right side
   1,498.82x = 1,798,184.22
5. Step 5: Solve for x
   x = 1,798,184.22/1,498.82
6. Step 6: Final answer
   x = 1,199.73