Finding the Fourth Proportional to 2,131.37, 3,196.98 and 528.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.37 : 3,196.98 = 528.52 : x
2. Step 2: Convert to fraction form
   2,131.37/3,196.98 = 528.52/x
3. Step 3: Cross multiply
   2,131.37x = 3,196.98 × 528.52
4. Step 4: Simplify right side
   2,131.37x = 1,689,667.87
5. Step 5: Solve for x
   x = 1,689,667.87/2,131.37
6. Step 6: Final answer
   x = 792.76