Finding the Fourth Proportional to 3,670.83, 5,501.77 and 1,720.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670.83 : 5,501.77 = 1,720.43 : x
2. Step 2: Convert to fraction form
   3,670.83/5,501.77 = 1,720.43/x
3. Step 3: Cross multiply
   3,670.83x = 5,501.77 × 1,720.43
4. Step 4: Simplify right side
   3,670.83x = 9,465,401.56
5. Step 5: Solve for x
   x = 9,465,401.56/3,670.83
6. Step 6: Final answer
   x = 2,578.55