Finding the Fourth Proportional to 1,914.32, 2,871.72 and 818.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,914.32 : 2,871.72 = 818.48 : x
2. Step 2: Convert to fraction form
   1,914.32/2,871.72 = 818.48/x
3. Step 3: Cross multiply
   1,914.32x = 2,871.72 × 818.48
4. Step 4: Simplify right side
   1,914.32x = 2,350,445.39
5. Step 5: Solve for x
   x = 2,350,445.39/1,914.32
6. Step 6: Final answer
   x = 1,227.82