Finding the Fourth Proportional to 1,405.42, 2,098.21 and 1,074.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.42 : 2,098.21 = 1,074.61 : x
2. Step 2: Convert to fraction form
   1,405.42/2,098.21 = 1,074.61/x
3. Step 3: Cross multiply
   1,405.42x = 2,098.21 × 1,074.61
4. Step 4: Simplify right side
   1,405.42x = 2,254,757.45
5. Step 5: Solve for x
   x = 2,254,757.45/1,405.42
6. Step 6: Final answer
   x = 1,604.33