Finding the Fourth Proportional to 2,607.33, 3,910.62 and 852.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.33 : 3,910.62 = 852.51 : x
2. Step 2: Convert to fraction form
   2,607.33/3,910.62 = 852.51/x
3. Step 3: Cross multiply
   2,607.33x = 3,910.62 × 852.51
4. Step 4: Simplify right side
   2,607.33x = 3,333,842.66
5. Step 5: Solve for x
   x = 3,333,842.66/2,607.33
6. Step 6: Final answer
   x = 1,278.64