Finding the Fourth Proportional to 702,172, 969,022.29 and 396,322.84

Step by Step Solution

1. Step 1: Write the proportion equation
   702,172 : 969,022.29 = 396,322.84 : x
2. Step 2: Convert to fraction form
   702,172/969,022.29 = 396,322.84/x
3. Step 3: Cross multiply
   702,172x = 969,022.29 × 396,322.84
4. Step 4: Simplify right side
   702,172x = 384,045,665,996.10
5. Step 5: Solve for x
   x = 384,045,665,996.10/702,172
6. Step 6: Final answer
   x = 546,939.59