Finding the Fourth Proportional to 2,041.35, 3,060.77 and 870.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,041.35 : 3,060.77 = 870.69 : x
2. Step 2: Convert to fraction form
   2,041.35/3,060.77 = 870.69/x
3. Step 3: Cross multiply
   2,041.35x = 3,060.77 × 870.69
4. Step 4: Simplify right side
   2,041.35x = 2,664,981.83
5. Step 5: Solve for x
   x = 2,664,981.83/2,041.35
6. Step 6: Final answer
   x = 1,305.50