Finding the Fourth Proportional to 2,477.27, 3,712.69 and 1,890.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.27 : 3,712.69 = 1,890.10 : x
2. Step 2: Convert to fraction form
   2,477.27/3,712.69 = 1,890.10/x
3. Step 3: Cross multiply
   2,477.27x = 3,712.69 × 1,890.10
4. Step 4: Simplify right side
   2,477.27x = 7,017,367.69
5. Step 5: Solve for x
   x = 7,017,367.69/2,477.27
6. Step 6: Final answer
   x = 2,832.71