Finding the Fourth Proportional to 1,238.10, 1,717.32 and 1,193.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238.10 : 1,717.32 = 1,193.77 : x
2. Step 2: Convert to fraction form
   1,238.10/1,717.32 = 1,193.77/x
3. Step 3: Cross multiply
   1,238.10x = 1,717.32 × 1,193.77
4. Step 4: Simplify right side
   1,238.10x = 2,050,091.72
5. Step 5: Solve for x
   x = 2,050,091.72/1,238.10
6. Step 6: Final answer
   x = 1,655.84