Finding the Fourth Proportional to 2,389.84, 3,582.52 and 1,090

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.84 : 3,582.52 = 1,090 : x
2. Step 2: Convert to fraction form
   2,389.84/3,582.52 = 1,090/x
3. Step 3: Cross multiply
   2,389.84x = 3,582.52 × 1,090
4. Step 4: Simplify right side
   2,389.84x = 3,904,946.80
5. Step 5: Solve for x
   x = 3,904,946.80/2,389.84
6. Step 6: Final answer
   x = 1,633.98