Finding the Fourth Proportional to 1,476,945.39, 2,215,435.72 and 411,922.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,476,945.39 : 2,215,435.72 = 411,922.65 : x
2. Step 2: Convert to fraction form
   1,476,945.39/2,215,435.72 = 411,922.65/x
3. Step 3: Cross multiply
   1,476,945.39x = 2,215,435.72 × 411,922.65
4. Step 4: Simplify right side
   1,476,945.39x = 912,588,144,121.72
5. Step 5: Solve for x
   x = 912,588,144,121.72/1,476,945.39
6. Step 6: Final answer
   x = 617,888.89