Finding the Fourth Proportional to 2,405.56, 3,605.29 and 1,173.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.56 : 3,605.29 = 1,173.35 : x
2. Step 2: Convert to fraction form
   2,405.56/3,605.29 = 1,173.35/x
3. Step 3: Cross multiply
   2,405.56x = 3,605.29 × 1,173.35
4. Step 4: Simplify right side
   2,405.56x = 4,230,267.02
5. Step 5: Solve for x
   x = 4,230,267.02/2,405.56
6. Step 6: Final answer
   x = 1,758.54