Finding the Fourth Proportional to 1,912.32, 2,870.40 and 1,484.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912.32 : 2,870.40 = 1,484.16 : x
2. Step 2: Convert to fraction form
   1,912.32/2,870.40 = 1,484.16/x
3. Step 3: Cross multiply
   1,912.32x = 2,870.40 × 1,484.16
4. Step 4: Simplify right side
   1,912.32x = 4,260,132.86
5. Step 5: Solve for x
   x = 4,260,132.86/1,912.32
6. Step 6: Final answer
   x = 2,227.73