Finding the Fourth Proportional to 2,499.63, 3,750.05 and 768.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.63 : 3,750.05 = 768.25 : x
2. Step 2: Convert to fraction form
   2,499.63/3,750.05 = 768.25/x
3. Step 3: Cross multiply
   2,499.63x = 3,750.05 × 768.25
4. Step 4: Simplify right side
   2,499.63x = 2,880,975.91
5. Step 5: Solve for x
   x = 2,880,975.91/2,499.63
6. Step 6: Final answer
   x = 1,152.56