Finding the Fourth Proportional to 1,760.18, 2,642.33 and 1,238.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.18 : 2,642.33 = 1,238.05 : x
2. Step 2: Convert to fraction form
   1,760.18/2,642.33 = 1,238.05/x
3. Step 3: Cross multiply
   1,760.18x = 2,642.33 × 1,238.05
4. Step 4: Simplify right side
   1,760.18x = 3,271,336.66
5. Step 5: Solve for x
   x = 3,271,336.66/1,760.18
6. Step 6: Final answer
   x = 1,858.52