Finding the Fourth Proportional to 899,499.96, 1,241,307.86 and 512,315.30

Step by Step Solution

1. Step 1: Write the proportion equation
   899,499.96 : 1,241,307.86 = 512,315.30 : x
2. Step 2: Convert to fraction form
   899,499.96/1,241,307.86 = 512,315.30/x
3. Step 3: Cross multiply
   899,499.96x = 1,241,307.86 × 512,315.30
4. Step 4: Simplify right side
   899,499.96x = 635,941,009,229.95
5. Step 5: Solve for x
   x = 635,941,009,229.95/899,499.96
6. Step 6: Final answer
   x = 706,993.93