Finding the Fourth Proportional to 901,797, 1,244,518.98 and 499,389

Step by Step Solution

1. Step 1: Write the proportion equation
   901,797 : 1,244,518.98 = 499,389 : x
2. Step 2: Convert to fraction form
   901,797/1,244,518.98 = 499,389/x
3. Step 3: Cross multiply
   901,797x = 1,244,518.98 × 499,389
4. Step 4: Simplify right side
   901,797x = 621,499,088,903.22
5. Step 5: Solve for x
   x = 621,499,088,903.22/901,797
6. Step 6: Final answer
   x = 689,178.48