Finding the Fourth Proportional to 2,477.78, 3,710.43 and 1,490.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.78 : 3,710.43 = 1,490.06 : x
2. Step 2: Convert to fraction form
   2,477.78/3,710.43 = 1,490.06/x
3. Step 3: Cross multiply
   2,477.78x = 3,710.43 × 1,490.06
4. Step 4: Simplify right side
   2,477.78x = 5,528,763.33
5. Step 5: Solve for x
   x = 5,528,763.33/2,477.78
6. Step 6: Final answer
   x = 2,231.34