Finding the Fourth Proportional to 900,582, 1,242,842.16 and 498,174

Step by Step Solution

1. Step 1: Write the proportion equation
   900,582 : 1,242,842.16 = 498,174 : x
2. Step 2: Convert to fraction form
   900,582/1,242,842.16 = 498,174/x
3. Step 3: Cross multiply
   900,582x = 1,242,842.16 × 498,174
4. Step 4: Simplify right side
   900,582x = 619,151,650,215.84
5. Step 5: Solve for x
   x = 619,151,650,215.84/900,582
6. Step 6: Final answer
   x = 687,501.69