Finding the Fourth Proportional to 2,503.74, 3,756.18 and 772.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.74 : 3,756.18 = 772.32 : x
2. Step 2: Convert to fraction form
   2,503.74/3,756.18 = 772.32/x
3. Step 3: Cross multiply
   2,503.74x = 3,756.18 × 772.32
4. Step 4: Simplify right side
   2,503.74x = 2,900,972.94
5. Step 5: Solve for x
   x = 2,900,972.94/2,503.74
6. Step 6: Final answer
   x = 1,158.66