Finding the Fourth Proportional to 3,435.72, 5,151.64 and 1,095.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,435.72 : 5,151.64 = 1,095.28 : x
2. Step 2: Convert to fraction form
   3,435.72/5,151.64 = 1,095.28/x
3. Step 3: Cross multiply
   3,435.72x = 5,151.64 × 1,095.28
4. Step 4: Simplify right side
   3,435.72x = 5,642,488.26
5. Step 5: Solve for x
   x = 5,642,488.26/3,435.72
6. Step 6: Final answer
   x = 1,642.30