Finding the Fourth Proportional to 2,768.48, 4,153.82 and 1,125.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.48 : 4,153.82 = 1,125.15 : x
2. Step 2: Convert to fraction form
   2,768.48/4,153.82 = 1,125.15/x
3. Step 3: Cross multiply
   2,768.48x = 4,153.82 × 1,125.15
4. Step 4: Simplify right side
   2,768.48x = 4,673,683.77
5. Step 5: Solve for x
   x = 4,673,683.77/2,768.48
6. Step 6: Final answer
   x = 1,688.18