Finding the Fourth Proportional to 2,051.30, 3,085.05 and 1,840.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.30 : 3,085.05 = 1,840.70 : x
2. Step 2: Convert to fraction form
   2,051.30/3,085.05 = 1,840.70/x
3. Step 3: Cross multiply
   2,051.30x = 3,085.05 × 1,840.70
4. Step 4: Simplify right side
   2,051.30x = 5,678,651.54
5. Step 5: Solve for x
   x = 5,678,651.54/2,051.30
6. Step 6: Final answer
   x = 2,768.32