Finding the Fourth Proportional to 2,389.41, 3,582.72 and 1,090.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.41 : 3,582.72 = 1,090.17 : x
2. Step 2: Convert to fraction form
   2,389.41/3,582.72 = 1,090.17/x
3. Step 3: Cross multiply
   2,389.41x = 3,582.72 × 1,090.17
4. Step 4: Simplify right side
   2,389.41x = 3,905,773.86
5. Step 5: Solve for x
   x = 3,905,773.86/2,389.41
6. Step 6: Final answer
   x = 1,634.62