Finding the Fourth Proportional to 1,479.47, 2,041.72 and 816.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.47 : 2,041.72 = 816.35 : x
2. Step 2: Convert to fraction form
   1,479.47/2,041.72 = 816.35/x
3. Step 3: Cross multiply
   1,479.47x = 2,041.72 × 816.35
4. Step 4: Simplify right side
   1,479.47x = 1,666,747.91
5. Step 5: Solve for x
   x = 1,666,747.91/1,479.47
6. Step 6: Final answer
   x = 1,126.58