Finding the Fourth Proportional to 3,061.80, 4,589.86 and 1,113.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.80 : 4,589.86 = 1,113.56 : x
2. Step 2: Convert to fraction form
   3,061.80/4,589.86 = 1,113.56/x
3. Step 3: Cross multiply
   3,061.80x = 4,589.86 × 1,113.56
4. Step 4: Simplify right side
   3,061.80x = 5,111,084.50
5. Step 5: Solve for x
   x = 5,111,084.50/3,061.80
6. Step 6: Final answer
   x = 1,669.31