Finding the Fourth Proportional to 2,060.57, 2,840.86 and 1,780.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.57 : 2,840.86 = 1,780.22 : x
2. Step 2: Convert to fraction form
   2,060.57/2,840.86 = 1,780.22/x
3. Step 3: Cross multiply
   2,060.57x = 2,840.86 × 1,780.22
4. Step 4: Simplify right side
   2,060.57x = 5,057,355.79
5. Step 5: Solve for x
   x = 5,057,355.79/2,060.57
6. Step 6: Final answer
   x = 2,454.35