Finding the Fourth Proportional to 4,826.48, 7,238.18 and 1,538.80

Step by Step Solution

1. Step 1: Write the proportion equation
   4,826.48 : 7,238.18 = 1,538.80 : x
2. Step 2: Convert to fraction form
   4,826.48/7,238.18 = 1,538.80/x
3. Step 3: Cross multiply
   4,826.48x = 7,238.18 × 1,538.80
4. Step 4: Simplify right side
   4,826.48x = 11,138,111.38
5. Step 5: Solve for x
   x = 11,138,111.38/4,826.48
6. Step 6: Final answer
   x = 2,307.71