Finding the Fourth Proportional to 824,900.96, 1,138,457.76 and 462,422.72

Step by Step Solution

1. Step 1: Write the proportion equation
   824,900.96 : 1,138,457.76 = 462,422.72 : x
2. Step 2: Convert to fraction form
   824,900.96/1,138,457.76 = 462,422.72/x
3. Step 3: Cross multiply
   824,900.96x = 1,138,457.76 × 462,422.72
4. Step 4: Simplify right side
   824,900.96x = 526,448,733,984.31
5. Step 5: Solve for x
   x = 526,448,733,984.31/824,900.96
6. Step 6: Final answer
   x = 638,196.29