Finding the Fourth Proportional to 1,045.42, 1,568.94 and 525.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.42 : 1,568.94 = 525.94 : x
2. Step 2: Convert to fraction form
   1,045.42/1,568.94 = 525.94/x
3. Step 3: Cross multiply
   1,045.42x = 1,568.94 × 525.94
4. Step 4: Simplify right side
   1,045.42x = 825,168.30
5. Step 5: Solve for x
   x = 825,168.30/1,045.42
6. Step 6: Final answer
   x = 789.32