Finding the Fourth Proportional to 510,225.28, 704,110.88 and 283,870.72

Step by Step Solution

1. Step 1: Write the proportion equation
   510,225.28 : 704,110.88 = 283,870.72 : x
2. Step 2: Convert to fraction form
   510,225.28/704,110.88 = 283,870.72/x
3. Step 3: Cross multiply
   510,225.28x = 704,110.88 × 283,870.72
4. Step 4: Simplify right side
   510,225.28x = 199,876,462,465.43
5. Step 5: Solve for x
   x = 199,876,462,465.43/510,225.28
6. Step 6: Final answer
   x = 391,741.59