Finding the Fourth Proportional to 1,479.66, 2,042.01 and 1,086.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.66 : 2,042.01 = 1,086.72 : x
2. Step 2: Convert to fraction form
   1,479.66/2,042.01 = 1,086.72/x
3. Step 3: Cross multiply
   1,479.66x = 2,042.01 × 1,086.72
4. Step 4: Simplify right side
   1,479.66x = 2,219,093.11
5. Step 5: Solve for x
   x = 2,219,093.11/1,479.66
6. Step 6: Final answer
   x = 1,499.73