Finding the Fourth Proportional to 2,155.53, 3,232.49 and 1,698.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.53 : 3,232.49 = 1,698.69 : x
2. Step 2: Convert to fraction form
   2,155.53/3,232.49 = 1,698.69/x
3. Step 3: Cross multiply
   2,155.53x = 3,232.49 × 1,698.69
4. Step 4: Simplify right side
   2,155.53x = 5,490,989.94
5. Step 5: Solve for x
   x = 5,490,989.94/2,155.53
6. Step 6: Final answer
   x = 2,547.40