Finding the Fourth Proportional to 505,898.10, 758,978.37 and 269,046

Step by Step Solution

1. Step 1: Write the proportion equation
   505,898.10 : 758,978.37 = 269,046 : x
2. Step 2: Convert to fraction form
   505,898.10/758,978.37 = 269,046/x
3. Step 3: Cross multiply
   505,898.10x = 758,978.37 × 269,046
4. Step 4: Simplify right side
   505,898.10x = 204,200,094,535.02
5. Step 5: Solve for x
   x = 204,200,094,535.02/505,898.10
6. Step 6: Final answer
   x = 403,638.79