Finding the Fourth Proportional to 2,777.32, 4,168.04 and 1,316.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,777.32 : 4,168.04 = 1,316.48 : x
2. Step 2: Convert to fraction form
   2,777.32/4,168.04 = 1,316.48/x
3. Step 3: Cross multiply
   2,777.32x = 4,168.04 × 1,316.48
4. Step 4: Simplify right side
   2,777.32x = 5,487,141.30
5. Step 5: Solve for x
   x = 5,487,141.30/2,777.32
6. Step 6: Final answer
   x = 1,975.70