Finding the Fourth Proportional to 2,238.57, 3,090.72 and 1,400.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.57 : 3,090.72 = 1,400.46 : x
2. Step 2: Convert to fraction form
   2,238.57/3,090.72 = 1,400.46/x
3. Step 3: Cross multiply
   2,238.57x = 3,090.72 × 1,400.46
4. Step 4: Simplify right side
   2,238.57x = 4,328,429.73
5. Step 5: Solve for x
   x = 4,328,429.73/2,238.57
6. Step 6: Final answer
   x = 1,933.57