Finding the Fourth Proportional to 4,768.72, 7,150.86 and 1,807.74

Step by Step Solution

1. Step 1: Write the proportion equation
   4,768.72 : 7,150.86 = 1,807.74 : x
2. Step 2: Convert to fraction form
   4,768.72/7,150.86 = 1,807.74/x
3. Step 3: Cross multiply
   4,768.72x = 7,150.86 × 1,807.74
4. Step 4: Simplify right side
   4,768.72x = 12,926,895.66
5. Step 5: Solve for x
   x = 12,926,895.66/4,768.72
6. Step 6: Final answer
   x = 2,710.77