Finding the Fourth Proportional to 2,009.02, 2,997.70 and 1,789.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.02 : 2,997.70 = 1,789.78 : x
2. Step 2: Convert to fraction form
   2,009.02/2,997.70 = 1,789.78/x
3. Step 3: Cross multiply
   2,009.02x = 2,997.70 × 1,789.78
4. Step 4: Simplify right side
   2,009.02x = 5,365,223.51
5. Step 5: Solve for x
   x = 5,365,223.51/2,009.02
6. Step 6: Final answer
   x = 2,670.57