Finding the Fourth Proportional to 1,830.32, 2,743.56 and 1,399.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,830.32 : 2,743.56 = 1,399.28 : x
2. Step 2: Convert to fraction form
   1,830.32/2,743.56 = 1,399.28/x
3. Step 3: Cross multiply
   1,830.32x = 2,743.56 × 1,399.28
4. Step 4: Simplify right side
   1,830.32x = 3,839,008.64
5. Step 5: Solve for x
   x = 3,839,008.64/1,830.32
6. Step 6: Final answer
   x = 2,097.45