Finding the Fourth Proportional to 3,640.79, 5,460.67 and 1,300.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.79 : 5,460.67 = 1,300.47 : x
2. Step 2: Convert to fraction form
   3,640.79/5,460.67 = 1,300.47/x
3. Step 3: Cross multiply
   3,640.79x = 5,460.67 × 1,300.47
4. Step 4: Simplify right side
   3,640.79x = 7,101,419.03
5. Step 5: Solve for x
   x = 7,101,419.03/3,640.79
6. Step 6: Final answer
   x = 1,950.52