Finding the Fourth Proportional to 1,086.07, 1,496.08 and 1,030.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.07 : 1,496.08 = 1,030.48 : x
2. Step 2: Convert to fraction form
   1,086.07/1,496.08 = 1,030.48/x
3. Step 3: Cross multiply
   1,086.07x = 1,496.08 × 1,030.48
4. Step 4: Simplify right side
   1,086.07x = 1,541,680.52
5. Step 5: Solve for x
   x = 1,541,680.52/1,086.07
6. Step 6: Final answer
   x = 1,419.50