Finding the Fourth Proportional to 3,148.72, 4,723.74 and 1,068.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,148.72 : 4,723.74 = 1,068.62 : x
2. Step 2: Convert to fraction form
   3,148.72/4,723.74 = 1,068.62/x
3. Step 3: Cross multiply
   3,148.72x = 4,723.74 × 1,068.62
4. Step 4: Simplify right side
   3,148.72x = 5,047,883.04
5. Step 5: Solve for x
   x = 5,047,883.04/3,148.72
6. Step 6: Final answer
   x = 1,603.15