Finding the Fourth Proportional to 2,517.57, 3,776.27 and 1,970.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.57 : 3,776.27 = 1,970.19 : x
2. Step 2: Convert to fraction form
   2,517.57/3,776.27 = 1,970.19/x
3. Step 3: Cross multiply
   2,517.57x = 3,776.27 × 1,970.19
4. Step 4: Simplify right side
   2,517.57x = 7,439,959.54
5. Step 5: Solve for x
   x = 7,439,959.54/2,517.57
6. Step 6: Final answer
   x = 2,955.21