Finding the Fourth Proportional to 2,645.42, 3,650.31 and 1,583.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.42 : 3,650.31 = 1,583.28 : x
2. Step 2: Convert to fraction form
   2,645.42/3,650.31 = 1,583.28/x
3. Step 3: Cross multiply
   2,645.42x = 3,650.31 × 1,583.28
4. Step 4: Simplify right side
   2,645.42x = 5,779,462.82
5. Step 5: Solve for x
   x = 5,779,462.82/2,645.42
6. Step 6: Final answer
   x = 2,184.71