Finding the Fourth Proportional to 2,784.57, 3,841.59 and 1,840.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,784.57 : 3,841.59 = 1,840.86 : x
2. Step 2: Convert to fraction form
   2,784.57/3,841.59 = 1,840.86/x
3. Step 3: Cross multiply
   2,784.57x = 3,841.59 × 1,840.86
4. Step 4: Simplify right side
   2,784.57x = 7,071,829.37
5. Step 5: Solve for x
   x = 7,071,829.37/2,784.57
6. Step 6: Final answer
   x = 2,539.65