Finding the Fourth Proportional to 2,631.32, 3,947.54 and 782.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.32 : 3,947.54 = 782.52 : x
2. Step 2: Convert to fraction form
   2,631.32/3,947.54 = 782.52/x
3. Step 3: Cross multiply
   2,631.32x = 3,947.54 × 782.52
4. Step 4: Simplify right side
   2,631.32x = 3,089,029.00
5. Step 5: Solve for x
   x = 3,089,029.00/2,631.32
6. Step 6: Final answer
   x = 1,173.95