Finding the Fourth Proportional to 2,212.25, 3,051.27 and 1,931.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.25 : 3,051.27 = 1,931.88 : x
2. Step 2: Convert to fraction form
   2,212.25/3,051.27 = 1,931.88/x
3. Step 3: Cross multiply
   2,212.25x = 3,051.27 × 1,931.88
4. Step 4: Simplify right side
   2,212.25x = 5,894,698.93
5. Step 5: Solve for x
   x = 5,894,698.93/2,212.25
6. Step 6: Final answer
   x = 2,664.58