Finding the Fourth Proportional to 1,479.30, 2,041.38 and 816.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.30 : 2,041.38 = 816.15 : x
2. Step 2: Convert to fraction form
   1,479.30/2,041.38 = 816.15/x
3. Step 3: Cross multiply
   1,479.30x = 2,041.38 × 816.15
4. Step 4: Simplify right side
   1,479.30x = 1,666,072.29
5. Step 5: Solve for x
   x = 1,666,072.29/1,479.30
6. Step 6: Final answer
   x = 1,126.26