Finding the Fourth Proportional to 2,025.56, 3,038.43 and 870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,025.56 : 3,038.43 = 870.50 : x
2. Step 2: Convert to fraction form
   2,025.56/3,038.43 = 870.50/x
3. Step 3: Cross multiply
   2,025.56x = 3,038.43 × 870.50
4. Step 4: Simplify right side
   2,025.56x = 2,644,953.32
5. Step 5: Solve for x
   x = 2,644,953.32/2,025.56
6. Step 6: Final answer
   x = 1,305.79