Finding the Fourth Proportional to 3,645.81, 5,031.25 and 2,074.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645.81 : 5,031.25 = 2,074.01 : x
2. Step 2: Convert to fraction form
   3,645.81/5,031.25 = 2,074.01/x
3. Step 3: Cross multiply
   3,645.81x = 5,031.25 × 2,074.01
4. Step 4: Simplify right side
   3,645.81x = 10,434,832.47
5. Step 5: Solve for x
   x = 10,434,832.47/3,645.81
6. Step 6: Final answer
   x = 2,862.14