Finding the Fourth Proportional to 1,646,401.72, 2,469,602.58 and 1,085,305

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646,401.72 : 2,469,602.58 = 1,085,305 : x
2. Step 2: Convert to fraction form
   1,646,401.72/2,469,602.58 = 1,085,305/x
3. Step 3: Cross multiply
   1,646,401.72x = 2,469,602.58 × 1,085,305
4. Step 4: Simplify right side
   1,646,401.72x = 2,680,272,028,086.90
5. Step 5: Solve for x
   x = 2,680,272,028,086.90/1,646,401.72
6. Step 6: Final answer
   x = 1,627,957.50