Finding the Fourth Proportional to 2,776.86, 4,164.48 and 902.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.86 : 4,164.48 = 902.34 : x
2. Step 2: Convert to fraction form
   2,776.86/4,164.48 = 902.34/x
3. Step 3: Cross multiply
   2,776.86x = 4,164.48 × 902.34
4. Step 4: Simplify right side
   2,776.86x = 3,757,776.88
5. Step 5: Solve for x
   x = 3,757,776.88/2,776.86
6. Step 6: Final answer
   x = 1,353.25