Finding the Fourth Proportional to 659,404, 909,978.06 and 357,598

Step by Step Solution

1. Step 1: Write the proportion equation
   659,404 : 909,978.06 = 357,598 : x
2. Step 2: Convert to fraction form
   659,404/909,978.06 = 357,598/x
3. Step 3: Cross multiply
   659,404x = 909,978.06 × 357,598
4. Step 4: Simplify right side
   659,404x = 325,406,334,299.88
5. Step 5: Solve for x
   x = 325,406,334,299.88/659,404
6. Step 6: Final answer
   x = 493,485.53