Finding the Fourth Proportional to 2,477.38, 3,710.78 and 1,860.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.38 : 3,710.78 = 1,860.16 : x
2. Step 2: Convert to fraction form
   2,477.38/3,710.78 = 1,860.16/x
3. Step 3: Cross multiply
   2,477.38x = 3,710.78 × 1,860.16
4. Step 4: Simplify right side
   2,477.38x = 6,902,644.52
5. Step 5: Solve for x
   x = 6,902,644.52/2,477.38
6. Step 6: Final answer
   x = 2,786.27