Finding the Fourth Proportional to 2,776.74, 4,146.79 and 2,470.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.74 : 4,146.79 = 2,470.56 : x
2. Step 2: Convert to fraction form
   2,776.74/4,146.79 = 2,470.56/x
3. Step 3: Cross multiply
   2,776.74x = 4,146.79 × 2,470.56
4. Step 4: Simplify right side
   2,776.74x = 10,244,893.50
5. Step 5: Solve for x
   x = 10,244,893.50/2,776.74
6. Step 6: Final answer
   x = 3,689.54