Finding the Fourth Proportional to 2,190.69, 3,023.15 and 1,404.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.69 : 3,023.15 = 1,404.74 : x
2. Step 2: Convert to fraction form
   2,190.69/3,023.15 = 1,404.74/x
3. Step 3: Cross multiply
   2,190.69x = 3,023.15 × 1,404.74
4. Step 4: Simplify right side
   2,190.69x = 4,246,739.73
5. Step 5: Solve for x
   x = 4,246,739.73/2,190.69
6. Step 6: Final answer
   x = 1,938.54