Finding the Fourth Proportional to 3,585.72, 5,378.56 and 1,395.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,585.72 : 5,378.56 = 1,395.98 : x
2. Step 2: Convert to fraction form
   3,585.72/5,378.56 = 1,395.98/x
3. Step 3: Cross multiply
   3,585.72x = 5,378.56 × 1,395.98
4. Step 4: Simplify right side
   3,585.72x = 7,508,362.19
5. Step 5: Solve for x
   x = 7,508,362.19/3,585.72
6. Step 6: Final answer
   x = 2,093.96