Finding the Fourth Proportional to 2,322.20, 3,483.12 and 1,089.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,322.20 : 3,483.12 = 1,089.88 : x
2. Step 2: Convert to fraction form
   2,322.20/3,483.12 = 1,089.88/x
3. Step 3: Cross multiply
   2,322.20x = 3,483.12 × 1,089.88
4. Step 4: Simplify right side
   2,322.20x = 3,796,182.83
5. Step 5: Solve for x
   x = 3,796,182.83/2,322.20
6. Step 6: Final answer
   x = 1,634.74