Finding the Fourth Proportional to 2,074.32, 3,117.62 and 1,921.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.32 : 3,117.62 = 1,921.54 : x
2. Step 2: Convert to fraction form
   2,074.32/3,117.62 = 1,921.54/x
3. Step 3: Cross multiply
   2,074.32x = 3,117.62 × 1,921.54
4. Step 4: Simplify right side
   2,074.32x = 5,990,631.53
5. Step 5: Solve for x
   x = 5,990,631.53/2,074.32
6. Step 6: Final answer
   x = 2,888.00