Finding the Fourth Proportional to 3,061.56, 4,592.96 and 1,113.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.56 : 4,592.96 = 1,113.72 : x
2. Step 2: Convert to fraction form
   3,061.56/4,592.96 = 1,113.72/x
3. Step 3: Cross multiply
   3,061.56x = 4,592.96 × 1,113.72
4. Step 4: Simplify right side
   3,061.56x = 5,115,265.84
5. Step 5: Solve for x
   x = 5,115,265.84/3,061.56
6. Step 6: Final answer
   x = 1,670.80