Finding the Fourth Proportional to 2,147.69, 2,963.38 and 1,307.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.69 : 2,963.38 = 1,307.83 : x
2. Step 2: Convert to fraction form
   2,147.69/2,963.38 = 1,307.83/x
3. Step 3: Cross multiply
   2,147.69x = 2,963.38 × 1,307.83
4. Step 4: Simplify right side
   2,147.69x = 3,875,597.27
5. Step 5: Solve for x
   x = 3,875,597.27/2,147.69
6. Step 6: Final answer
   x = 1,804.54