Finding the Fourth Proportional to 2,171,892.96, 2,997,208.80 and 1,205,170.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,892.96 : 2,997,208.80 = 1,205,170.56 : x
2. Step 2: Convert to fraction form
   2,171,892.96/2,997,208.80 = 1,205,170.56/x
3. Step 3: Cross multiply
   2,171,892.96x = 2,997,208.80 × 1,205,170.56
4. Step 4: Simplify right side
   2,171,892.96x = 3,612,147,807,932.93
5. Step 5: Solve for x
   x = 3,612,147,807,932.93/2,171,892.96
6. Step 6: Final answer
   x = 1,663,133.44