Finding the Fourth Proportional to 2,082.99, 3,124.53 and 784.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.99 : 3,124.53 = 784.47 : x
2. Step 2: Convert to fraction form
   2,082.99/3,124.53 = 784.47/x
3. Step 3: Cross multiply
   2,082.99x = 3,124.53 × 784.47
4. Step 4: Simplify right side
   2,082.99x = 2,451,100.05
5. Step 5: Solve for x
   x = 2,451,100.05/2,082.99
6. Step 6: Final answer
   x = 1,176.72