Finding the Fourth Proportional to 1,479.58, 2,041.81 and 816.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.58 : 2,041.81 = 816.42 : x
2. Step 2: Convert to fraction form
   1,479.58/2,041.81 = 816.42/x
3. Step 3: Cross multiply
   1,479.58x = 2,041.81 × 816.42
4. Step 4: Simplify right side
   1,479.58x = 1,666,974.52
5. Step 5: Solve for x
   x = 1,666,974.52/1,479.58
6. Step 6: Final answer
   x = 1,126.65