Finding the Fourth Proportional to 3,061.12, 4,592.72 and 1,113.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.12 : 4,592.72 = 1,113.48 : x
2. Step 2: Convert to fraction form
   3,061.12/4,592.72 = 1,113.48/x
3. Step 3: Cross multiply
   3,061.12x = 4,592.72 × 1,113.48
4. Step 4: Simplify right side
   3,061.12x = 5,113,901.87
5. Step 5: Solve for x
   x = 5,113,901.87/3,061.12
6. Step 6: Final answer
   x = 1,670.60