Finding the Fourth Proportional to 2,041.54, 3,061.53 and 870.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,041.54 : 3,061.53 = 870.80 : x
2. Step 2: Convert to fraction form
   2,041.54/3,061.53 = 870.80/x
3. Step 3: Cross multiply
   2,041.54x = 3,061.53 × 870.80
4. Step 4: Simplify right side
   2,041.54x = 2,665,982.24
5. Step 5: Solve for x
   x = 2,665,982.24/2,041.54
6. Step 6: Final answer
   x = 1,305.87