Finding the Fourth Proportional to 2,784.18, 4,174.78 and 1,201.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,784.18 : 4,174.78 = 1,201.56 : x
2. Step 2: Convert to fraction form
   2,784.18/4,174.78 = 1,201.56/x
3. Step 3: Cross multiply
   2,784.18x = 4,174.78 × 1,201.56
4. Step 4: Simplify right side
   2,784.18x = 5,016,248.66
5. Step 5: Solve for x
   x = 5,016,248.66/2,784.18
6. Step 6: Final answer
   x = 1,801.70