Finding the Fourth Proportional to 2,541.89, 3,812.44 and 693.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,541.89 : 3,812.44 = 693.15 : x
2. Step 2: Convert to fraction form
   2,541.89/3,812.44 = 693.15/x
3. Step 3: Cross multiply
   2,541.89x = 3,812.44 × 693.15
4. Step 4: Simplify right side
   2,541.89x = 2,642,597.55
5. Step 5: Solve for x
   x = 2,642,597.55/2,541.89
6. Step 6: Final answer
   x = 1,039.62