Finding the Fourth Proportional to 2,190.42, 3,024.83 and 1,405.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.42 : 3,024.83 = 1,405.83 : x
2. Step 2: Convert to fraction form
   2,190.42/3,024.83 = 1,405.83/x
3. Step 3: Cross multiply
   2,190.42x = 3,024.83 × 1,405.83
4. Step 4: Simplify right side
   2,190.42x = 4,252,396.76
5. Step 5: Solve for x
   x = 4,252,396.76/2,190.42
6. Step 6: Final answer
   x = 1,941.36