Finding the Fourth Proportional to 3,019.66, 4,499.83 and 2,920.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,019.66 : 4,499.83 = 2,920.57 : x
2. Step 2: Convert to fraction form
   3,019.66/4,499.83 = 2,920.57/x
3. Step 3: Cross multiply
   3,019.66x = 4,499.83 × 2,920.57
4. Step 4: Simplify right side
   3,019.66x = 13,142,068.50
5. Step 5: Solve for x
   x = 13,142,068.50/3,019.66
6. Step 6: Final answer
   x = 4,352.17