Finding the Fourth Proportional to 899,499.94, 1,241,307.81 and 512,315.29

Step by Step Solution

1. Step 1: Write the proportion equation
   899,499.94 : 1,241,307.81 = 512,315.29 : x
2. Step 2: Convert to fraction form
   899,499.94/1,241,307.81 = 512,315.29/x
3. Step 3: Cross multiply
   899,499.94x = 1,241,307.81 × 512,315.29
4. Step 4: Simplify right side
   899,499.94x = 635,940,970,659.42
5. Step 5: Solve for x
   x = 635,940,970,659.42/899,499.94
6. Step 6: Final answer
   x = 706,993.90