Finding the Fourth Proportional to 753,401.98, 1,039,967.67 and 498,835.18

Step by Step Solution

1. Step 1: Write the proportion equation
   753,401.98 : 1,039,967.67 = 498,835.18 : x
2. Step 2: Convert to fraction form
   753,401.98/1,039,967.67 = 498,835.18/x
3. Step 3: Cross multiply
   753,401.98x = 1,039,967.67 × 498,835.18
4. Step 4: Simplify right side
   753,401.98x = 518,772,459,858.63
5. Step 5: Solve for x
   x = 518,772,459,858.63/753,401.98
6. Step 6: Final answer
   x = 688,573.26