Finding the Fourth Proportional to 2,264.76, 3,396.78 and 877.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,264.76 : 3,396.78 = 877.50 : x
2. Step 2: Convert to fraction form
   2,264.76/3,396.78 = 877.50/x
3. Step 3: Cross multiply
   2,264.76x = 3,396.78 × 877.50
4. Step 4: Simplify right side
   2,264.76x = 2,980,674.45
5. Step 5: Solve for x
   x = 2,980,674.45/2,264.76
6. Step 6: Final answer
   x = 1,316.11