Finding the Fourth Proportional to 2,090.72, 3,137.52 and 1,065.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.72 : 3,137.52 = 1,065.44 : x
2. Step 2: Convert to fraction form
   2,090.72/3,137.52 = 1,065.44/x
3. Step 3: Cross multiply
   2,090.72x = 3,137.52 × 1,065.44
4. Step 4: Simplify right side
   2,090.72x = 3,342,839.31
5. Step 5: Solve for x
   x = 3,342,839.31/2,090.72
6. Step 6: Final answer
   x = 1,598.89