Finding the Fourth Proportional to 3,374.16, 5,061.60 and 1,065.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,374.16 : 5,061.60 = 1,065.12 : x
2. Step 2: Convert to fraction form
   3,374.16/5,061.60 = 1,065.12/x
3. Step 3: Cross multiply
   3,374.16x = 5,061.60 × 1,065.12
4. Step 4: Simplify right side
   3,374.16x = 5,391,211.39
5. Step 5: Solve for x
   x = 5,391,211.39/3,374.16
6. Step 6: Final answer
   x = 1,597.79