Finding the Fourth Proportional to 2,756.72, 4,135.37 and 1,113

Step by Step Solution

1. Step 1: Write the proportion equation
   2,756.72 : 4,135.37 = 1,113 : x
2. Step 2: Convert to fraction form
   2,756.72/4,135.37 = 1,113/x
3. Step 3: Cross multiply
   2,756.72x = 4,135.37 × 1,113
4. Step 4: Simplify right side
   2,756.72x = 4,602,666.81
5. Step 5: Solve for x
   x = 4,602,666.81/2,756.72
6. Step 6: Final answer
   x = 1,669.62