Finding the Fourth Proportional to 1,369,665.31, 2,054,778.18 and 470,990.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369,665.31 : 2,054,778.18 = 470,990.29 : x
2. Step 2: Convert to fraction form
   1,369,665.31/2,054,778.18 = 470,990.29/x
3. Step 3: Cross multiply
   1,369,665.31x = 2,054,778.18 × 470,990.29
4. Step 4: Simplify right side
   1,369,665.31x = 967,780,570,883.87
5. Step 5: Solve for x
   x = 967,780,570,883.87/1,369,665.31
6. Step 6: Final answer
   x = 706,581.79