Finding the Fourth Proportional to 3,848.16, 5,768.72 and 1,872.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,848.16 : 5,768.72 = 1,872.70 : x
2. Step 2: Convert to fraction form
   3,848.16/5,768.72 = 1,872.70/x
3. Step 3: Cross multiply
   3,848.16x = 5,768.72 × 1,872.70
4. Step 4: Simplify right side
   3,848.16x = 10,803,081.94
5. Step 5: Solve for x
   x = 10,803,081.94/3,848.16
6. Step 6: Final answer
   x = 2,807.34