Finding the Fourth Proportional to 1,742.32, 2,405.25 and 1,175.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,742.32 : 2,405.25 = 1,175.30 : x
2. Step 2: Convert to fraction form
   1,742.32/2,405.25 = 1,175.30/x
3. Step 3: Cross multiply
   1,742.32x = 2,405.25 × 1,175.30
4. Step 4: Simplify right side
   1,742.32x = 2,826,890.33
5. Step 5: Solve for x
   x = 2,826,890.33/1,742.32
6. Step 6: Final answer
   x = 1,622.49