Finding the Fourth Proportional to 2,389.52, 3,583.86 and 1,090.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.52 : 3,583.86 = 1,090.68 : x
2. Step 2: Convert to fraction form
   2,389.52/3,583.86 = 1,090.68/x
3. Step 3: Cross multiply
   2,389.52x = 3,583.86 × 1,090.68
4. Step 4: Simplify right side
   2,389.52x = 3,908,844.42
5. Step 5: Solve for x
   x = 3,908,844.42/2,389.52
6. Step 6: Final answer
   x = 1,635.83