Finding the Fourth Proportional to 4,784.72, 7,174.31 and 1,859.60

Step by Step Solution

1. Step 1: Write the proportion equation
   4,784.72 : 7,174.31 = 1,859.60 : x
2. Step 2: Convert to fraction form
   4,784.72/7,174.31 = 1,859.60/x
3. Step 3: Cross multiply
   4,784.72x = 7,174.31 × 1,859.60
4. Step 4: Simplify right side
   4,784.72x = 13,341,369.46
5. Step 5: Solve for x
   x = 13,341,369.46/4,784.72
6. Step 6: Final answer
   x = 2,788.33