Finding the Fourth Proportional to 2,847.80, 3,927.90 and 1,784.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,847.80 : 3,927.90 = 1,784.72 : x
2. Step 2: Convert to fraction form
   2,847.80/3,927.90 = 1,784.72/x
3. Step 3: Cross multiply
   2,847.80x = 3,927.90 × 1,784.72
4. Step 4: Simplify right side
   2,847.80x = 7,010,201.69
5. Step 5: Solve for x
   x = 7,010,201.69/2,847.80
6. Step 6: Final answer
   x = 2,461.62