Finding the Fourth Proportional to 1,624.57, 2,436.34 and 528.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,624.57 : 2,436.34 = 528.69 : x
2. Step 2: Convert to fraction form
   1,624.57/2,436.34 = 528.69/x
3. Step 3: Cross multiply
   1,624.57x = 2,436.34 × 528.69
4. Step 4: Simplify right side
   1,624.57x = 1,288,068.59
5. Step 5: Solve for x
   x = 1,288,068.59/1,624.57
6. Step 6: Final answer
   x = 792.87