Finding the Fourth Proportional to 1,055,196.15, 1,582,809.78 and 335,648.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055,196.15 : 1,582,809.78 = 335,648.91 : x
2. Step 2: Convert to fraction form
   1,055,196.15/1,582,809.78 = 335,648.91/x
3. Step 3: Cross multiply
   1,055,196.15x = 1,582,809.78 × 335,648.91
4. Step 4: Simplify right side
   1,055,196.15x = 531,268,377,394.34
5. Step 5: Solve for x
   x = 531,268,377,394.34/1,055,196.15
6. Step 6: Final answer
   x = 503,478.31