Finding the Fourth Proportional to 2,503.88, 3,756.02 and 772.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.88 : 3,756.02 = 772.50 : x
2. Step 2: Convert to fraction form
   2,503.88/3,756.02 = 772.50/x
3. Step 3: Cross multiply
   2,503.88x = 3,756.02 × 772.50
4. Step 4: Simplify right side
   2,503.88x = 2,901,525.45
5. Step 5: Solve for x
   x = 2,901,525.45/2,503.88
6. Step 6: Final answer
   x = 1,158.81