Finding the Fourth Proportional to 3,061.16, 4,591.56 and 1,113.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.16 : 4,591.56 = 1,113.68 : x
2. Step 2: Convert to fraction form
   3,061.16/4,591.56 = 1,113.68/x
3. Step 3: Cross multiply
   3,061.16x = 4,591.56 × 1,113.68
4. Step 4: Simplify right side
   3,061.16x = 5,113,528.54
5. Step 5: Solve for x
   x = 5,113,528.54/3,061.16
6. Step 6: Final answer
   x = 1,670.45