Finding the Fourth Proportional to 2,780.34, 4,168.89 and 1,049.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,780.34 : 4,168.89 = 1,049.10 : x
2. Step 2: Convert to fraction form
   2,780.34/4,168.89 = 1,049.10/x
3. Step 3: Cross multiply
   2,780.34x = 4,168.89 × 1,049.10
4. Step 4: Simplify right side
   2,780.34x = 4,373,582.50
5. Step 5: Solve for x
   x = 4,373,582.50/2,780.34
6. Step 6: Final answer
   x = 1,573.04