Finding the Fourth Proportional to 2,086,253.42, 3,129,224.61 and 666,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086,253.42 : 3,129,224.61 = 666,459.50 : x
2. Step 2: Convert to fraction form
   2,086,253.42/3,129,224.61 = 666,459.50/x
3. Step 3: Cross multiply
   2,086,253.42x = 3,129,224.61 × 666,459.50
4. Step 4: Simplify right side
   2,086,253.42x = 2,085,501,468,968.30
5. Step 5: Solve for x
   x = 2,085,501,468,968.30/2,086,253.42
6. Step 6: Final answer
   x = 999,639.57