Finding the Fourth Proportional to 3,645.57, 5,030.79 and 2,073.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645.57 : 5,030.79 = 2,073.57 : x
2. Step 2: Convert to fraction form
   3,645.57/5,030.79 = 2,073.57/x
3. Step 3: Cross multiply
   3,645.57x = 5,030.79 × 2,073.57
4. Step 4: Simplify right side
   3,645.57x = 10,431,695.22
5. Step 5: Solve for x
   x = 10,431,695.22/3,645.57
6. Step 6: Final answer
   x = 2,861.47