Finding the Fourth Proportional to 2,391,665.16, 3,588,992.42 and 971,721.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391,665.16 : 3,588,992.42 = 971,721.24 : x
2. Step 2: Convert to fraction form
   2,391,665.16/3,588,992.42 = 971,721.24/x
3. Step 3: Cross multiply
   2,391,665.16x = 3,588,992.42 × 971,721.24
4. Step 4: Simplify right side
   2,391,665.16x = 3,487,500,174,782.65
5. Step 5: Solve for x
   x = 3,487,500,174,782.65/2,391,665.16
6. Step 6: Final answer
   x = 1,458,189.14