Finding the Fourth Proportional to 2,799.96, 4,200.17 and 852.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.96 : 4,200.17 = 852.18 : x
2. Step 2: Convert to fraction form
   2,799.96/4,200.17 = 852.18/x
3. Step 3: Cross multiply
   2,799.96x = 4,200.17 × 852.18
4. Step 4: Simplify right side
   2,799.96x = 3,579,300.87
5. Step 5: Solve for x
   x = 3,579,300.87/2,799.96
6. Step 6: Final answer
   x = 1,278.34