Finding the Fourth Proportional to 1,615,665.06, 2,229,605.46 and 890,514.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,665.06 : 2,229,605.46 = 890,514.18 : x
2. Step 2: Convert to fraction form
   1,615,665.06/2,229,605.46 = 890,514.18/x
3. Step 3: Cross multiply
   1,615,665.06x = 2,229,605.46 × 890,514.18
4. Step 4: Simplify right side
   1,615,665.06x = 1,985,495,277,935.42
5. Step 5: Solve for x
   x = 1,985,495,277,935.42/1,615,665.06
6. Step 6: Final answer
   x = 1,228,902.78