Finding the Fourth Proportional to 3,835.89, 5,753.61 and 1,238.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,835.89 : 5,753.61 = 1,238.63 : x
2. Step 2: Convert to fraction form
   3,835.89/5,753.61 = 1,238.63/x
3. Step 3: Cross multiply
   3,835.89x = 5,753.61 × 1,238.63
4. Step 4: Simplify right side
   3,835.89x = 7,126,565.19
5. Step 5: Solve for x
   x = 7,126,565.19/3,835.89
6. Step 6: Final answer
   x = 1,857.86