Finding the Fourth Proportional to 3,061.40, 4,593.30 and 1,113.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.40 : 4,593.30 = 1,113.80 : x
2. Step 2: Convert to fraction form
   3,061.40/4,593.30 = 1,113.80/x
3. Step 3: Cross multiply
   3,061.40x = 4,593.30 × 1,113.80
4. Step 4: Simplify right side
   3,061.40x = 5,116,017.54
5. Step 5: Solve for x
   x = 5,116,017.54/3,061.40
6. Step 6: Final answer
   x = 1,671.14