Finding the Fourth Proportional to 1,499.66, 2,069.78 and 1,107.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.66 : 2,069.78 = 1,107.82 : x
2. Step 2: Convert to fraction form
   1,499.66/2,069.78 = 1,107.82/x
3. Step 3: Cross multiply
   1,499.66x = 2,069.78 × 1,107.82
4. Step 4: Simplify right side
   1,499.66x = 2,292,943.68
5. Step 5: Solve for x
   x = 2,292,943.68/1,499.66
6. Step 6: Final answer
   x = 1,528.98