Finding the Fourth Proportional to 1,738.80, 2,605.41 and 1,412.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,738.80 : 2,605.41 = 1,412.55 : x
2. Step 2: Convert to fraction form
   1,738.80/2,605.41 = 1,412.55/x
3. Step 3: Cross multiply
   1,738.80x = 2,605.41 × 1,412.55
4. Step 4: Simplify right side
   1,738.80x = 3,680,271.90
5. Step 5: Solve for x
   x = 3,680,271.90/1,738.80
6. Step 6: Final answer
   x = 2,116.56