Finding the Fourth Proportional to 3,804.72, 5,707.24 and 1,307.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,804.72 : 5,707.24 = 1,307.62 : x
2. Step 2: Convert to fraction form
   3,804.72/5,707.24 = 1,307.62/x
3. Step 3: Cross multiply
   3,804.72x = 5,707.24 × 1,307.62
4. Step 4: Simplify right side
   3,804.72x = 7,462,901.17
5. Step 5: Solve for x
   x = 7,462,901.17/3,804.72
6. Step 6: Final answer
   x = 1,961.48