Finding the Fourth Proportional to 2,168.79, 3,253.20 and 525.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.79 : 3,253.20 = 525.34 : x
2. Step 2: Convert to fraction form
   2,168.79/3,253.20 = 525.34/x
3. Step 3: Cross multiply
   2,168.79x = 3,253.20 × 525.34
4. Step 4: Simplify right side
   2,168.79x = 1,709,019.89
5. Step 5: Solve for x
   x = 1,709,019.89/2,168.79
6. Step 6: Final answer
   x = 788.01