Finding the Fourth Proportional to 810,152.50, 1,118,010.46 and 452,456.50

Step by Step Solution

1. Step 1: Write the proportion equation
   810,152.50 : 1,118,010.46 = 452,456.50 : x
2. Step 2: Convert to fraction form
   810,152.50/1,118,010.46 = 452,456.50/x
3. Step 3: Cross multiply
   810,152.50x = 1,118,010.46 × 452,456.50
4. Step 4: Simplify right side
   810,152.50x = 505,851,099,694.99
5. Step 5: Solve for x
   x = 505,851,099,694.99/810,152.50
6. Step 6: Final answer
   x = 624,389.98