Finding the Fourth Proportional to 825,877.15, 1,139,748.03 and 481,719.89

Step by Step Solution

1. Step 1: Write the proportion equation
   825,877.15 : 1,139,748.03 = 481,719.89 : x
2. Step 2: Convert to fraction form
   825,877.15/1,139,748.03 = 481,719.89/x
3. Step 3: Cross multiply
   825,877.15x = 1,139,748.03 × 481,719.89
4. Step 4: Simplify right side
   825,877.15x = 549,039,298,488.69
5. Step 5: Solve for x
   x = 549,039,298,488.69/825,877.15
6. Step 6: Final answer
   x = 664,795.36