Finding the Fourth Proportional to 687,731.50, 1,030,255.27 and 450,354.52

Step by Step Solution

1. Step 1: Write the proportion equation
   687,731.50 : 1,030,255.27 = 450,354.52 : x
2. Step 2: Convert to fraction form
   687,731.50/1,030,255.27 = 450,354.52/x
3. Step 3: Cross multiply
   687,731.50x = 1,030,255.27 × 450,354.52
4. Step 4: Simplify right side
   687,731.50x = 463,980,111,965.07
5. Step 5: Solve for x
   x = 463,980,111,965.07/687,731.50
6. Step 6: Final answer
   x = 674,652.99