Finding the Fourth Proportional to 2,014.79, 2,780.21 and 1,130.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.79 : 2,780.21 = 1,130.42 : x
2. Step 2: Convert to fraction form
   2,014.79/2,780.21 = 1,130.42/x
3. Step 3: Cross multiply
   2,014.79x = 2,780.21 × 1,130.42
4. Step 4: Simplify right side
   2,014.79x = 3,142,793.91
5. Step 5: Solve for x
   x = 3,142,793.91/2,014.79
6. Step 6: Final answer
   x = 1,559.87