Finding the Fourth Proportional to 1,394.72, 2,095.32 and 818.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.72 : 2,095.32 = 818.00 : x
2. Step 2: Convert to fraction form
   1,394.72/2,095.32 = 818.00/x
3. Step 3: Cross multiply
   1,394.72x = 2,095.32 × 818.00
4. Step 4: Simplify right side
   1,394.72x = 1,713,980.07
5. Step 5: Solve for x
   x = 1,713,980.07/1,394.72
6. Step 6: Final answer
   x = 1,228.90