Finding the Fourth Proportional to 2,477.83, 3,713.10 and 1,089.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.83 : 3,713.10 = 1,089.90 : x
2. Step 2: Convert to fraction form
   2,477.83/3,713.10 = 1,089.90/x
3. Step 3: Cross multiply
   2,477.83x = 3,713.10 × 1,089.90
4. Step 4: Simplify right side
   2,477.83x = 4,046,907.69
5. Step 5: Solve for x
   x = 4,046,907.69/2,477.83
6. Step 6: Final answer
   x = 1,633.25