Finding the Fourth Proportional to 2,321.81, 3,483.86 and 1,089.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321.81 : 3,483.86 = 1,089.32 : x
2. Step 2: Convert to fraction form
   2,321.81/3,483.86 = 1,089.32/x
3. Step 3: Cross multiply
   2,321.81x = 3,483.86 × 1,089.32
4. Step 4: Simplify right side
   2,321.81x = 3,795,051.03
5. Step 5: Solve for x
   x = 3,795,051.03/2,321.81
6. Step 6: Final answer
   x = 1,634.52