Finding the Fourth Proportional to 2,541.05, 3,810.62 and 874.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,541.05 : 3,810.62 = 874.70 : x
2. Step 2: Convert to fraction form
   2,541.05/3,810.62 = 874.70/x
3. Step 3: Cross multiply
   2,541.05x = 3,810.62 × 874.70
4. Step 4: Simplify right side
   2,541.05x = 3,333,149.31
5. Step 5: Solve for x
   x = 3,333,149.31/2,541.05
6. Step 6: Final answer
   x = 1,311.72