Finding the Fourth Proportional to 2,152.52, 3,230.20 and 784.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.52 : 3,230.20 = 784.52 : x
2. Step 2: Convert to fraction form
   2,152.52/3,230.20 = 784.52/x
3. Step 3: Cross multiply
   2,152.52x = 3,230.20 × 784.52
4. Step 4: Simplify right side
   2,152.52x = 2,534,156.50
5. Step 5: Solve for x
   x = 2,534,156.50/2,152.52
6. Step 6: Final answer
   x = 1,177.30