Finding the Fourth Proportional to 1,308.27, 1,962.51 and 528.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.27 : 1,962.51 = 528.18 : x
2. Step 2: Convert to fraction form
   1,308.27/1,962.51 = 528.18/x
3. Step 3: Cross multiply
   1,308.27x = 1,962.51 × 528.18
4. Step 4: Simplify right side
   1,308.27x = 1,036,558.53
5. Step 5: Solve for x
   x = 1,036,558.53/1,308.27
6. Step 6: Final answer
   x = 792.31