Finding the Fourth Proportional to 3,818.71, 5,728.34 and 1,045.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,818.71 : 5,728.34 = 1,045.59 : x
2. Step 2: Convert to fraction form
   3,818.71/5,728.34 = 1,045.59/x
3. Step 3: Cross multiply
   3,818.71x = 5,728.34 × 1,045.59
4. Step 4: Simplify right side
   3,818.71x = 5,989,495.02
5. Step 5: Solve for x
   x = 5,989,495.02/3,818.71
6. Step 6: Final answer
   x = 1,568.46