Finding the Fourth Proportional to 2,009,389.84, 3,012,950.04 and 661,188.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009,389.84 : 3,012,950.04 = 661,188.88 : x
2. Step 2: Convert to fraction form
   2,009,389.84/3,012,950.04 = 661,188.88/x
3. Step 3: Cross multiply
   2,009,389.84x = 3,012,950.04 × 661,188.88
4. Step 4: Simplify right side
   2,009,389.84x = 1,992,129,062,443.56
5. Step 5: Solve for x
   x = 1,992,129,062,443.56/2,009,389.84
6. Step 6: Final answer
   x = 991,409.94