Finding the Fourth Proportional to 824,131.81, 1,137,171.99 and 480,024.37

Step by Step Solution

1. Step 1: Write the proportion equation
   824,131.81 : 1,137,171.99 = 480,024.37 : x
2. Step 2: Convert to fraction form
   824,131.81/1,137,171.99 = 480,024.37/x
3. Step 3: Cross multiply
   824,131.81x = 1,137,171.99 × 480,024.37
4. Step 4: Simplify right side
   824,131.81x = 545,870,268,081.40
5. Step 5: Solve for x
   x = 545,870,268,081.40/824,131.81
6. Step 6: Final answer
   x = 662,357.96