Finding the Fourth Proportional to 501,164.26, 691,300.52 and 297,078.59

Step by Step Solution

1. Step 1: Write the proportion equation
   501,164.26 : 691,300.52 = 297,078.59 : x
2. Step 2: Convert to fraction form
   501,164.26/691,300.52 = 297,078.59/x
3. Step 3: Cross multiply
   501,164.26x = 691,300.52 × 297,078.59
4. Step 4: Simplify right side
   501,164.26x = 205,370,582,887.27
5. Step 5: Solve for x
   x = 205,370,582,887.27/501,164.26
6. Step 6: Final answer
   x = 409,786.97