Finding the Fourth Proportional to 3,847.31, 5,769.54 and 1,381.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,847.31 : 5,769.54 = 1,381.46 : x
2. Step 2: Convert to fraction form
   3,847.31/5,769.54 = 1,381.46/x
3. Step 3: Cross multiply
   3,847.31x = 5,769.54 × 1,381.46
4. Step 4: Simplify right side
   3,847.31x = 7,970,403.15
5. Step 5: Solve for x
   x = 7,970,403.15/3,847.31
6. Step 6: Final answer
   x = 2,071.68