Finding the Fourth Proportional to 2,952.51, 4,429.31 and 1,221.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,952.51 : 4,429.31 = 1,221.27 : x
2. Step 2: Convert to fraction form
   2,952.51/4,429.31 = 1,221.27/x
3. Step 3: Cross multiply
   2,952.51x = 4,429.31 × 1,221.27
4. Step 4: Simplify right side
   2,952.51x = 5,409,377.32
5. Step 5: Solve for x
   x = 5,409,377.32/2,952.51
6. Step 6: Final answer
   x = 1,832.13