Finding the Fourth Proportional to 2,477.78, 3,417.37 and 2,194.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.78 : 3,417.37 = 2,194.49 : x
2. Step 2: Convert to fraction form
   2,477.78/3,417.37 = 2,194.49/x
3. Step 3: Cross multiply
   2,477.78x = 3,417.37 × 2,194.49
4. Step 4: Simplify right side
   2,477.78x = 7,499,382.76
5. Step 5: Solve for x
   x = 7,499,382.76/2,477.78
6. Step 6: Final answer
   x = 3,026.66