Finding the Fourth Proportional to 1,404,683.48, 2,107,026.27 and 339,726.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,683.48 : 2,107,026.27 = 339,726.57 : x
2. Step 2: Convert to fraction form
   1,404,683.48/2,107,026.27 = 339,726.57/x
3. Step 3: Cross multiply
   1,404,683.48x = 2,107,026.27 × 339,726.57
4. Step 4: Simplify right side
   1,404,683.48x = 715,812,802,668.65
5. Step 5: Solve for x
   x = 715,812,802,668.65/1,404,683.48
6. Step 6: Final answer
   x = 509,590.10