Finding the Fourth Proportional to 2,027.62, 2,796.50 and 1,398.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,027.62 : 2,796.50 = 1,398.00 : x
2. Step 2: Convert to fraction form
   2,027.62/2,796.50 = 1,398.00/x
3. Step 3: Cross multiply
   2,027.62x = 2,796.50 × 1,398.00
4. Step 4: Simplify right side
   2,027.62x = 3,909,513.12
5. Step 5: Solve for x
   x = 3,909,513.12/2,027.62
6. Step 6: Final answer
   x = 1,928.13