Finding the Fourth Proportional to 2,740.50, 3,782.03 and 1,561.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.50 : 3,782.03 = 1,561.68 : x
2. Step 2: Convert to fraction form
   2,740.50/3,782.03 = 1,561.68/x
3. Step 3: Cross multiply
   2,740.50x = 3,782.03 × 1,561.68
4. Step 4: Simplify right side
   2,740.50x = 5,906,312.80
5. Step 5: Solve for x
   x = 5,906,312.80/2,740.50
6. Step 6: Final answer
   x = 2,155.20