Finding the Fourth Proportional to 1,840.91, 2,539.71 and 1,281.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,840.91 : 2,539.71 = 1,281.83 : x
2. Step 2: Convert to fraction form
   1,840.91/2,539.71 = 1,281.83/x
3. Step 3: Cross multiply
   1,840.91x = 2,539.71 × 1,281.83
4. Step 4: Simplify right side
   1,840.91x = 3,255,463.77
5. Step 5: Solve for x
   x = 3,255,463.77/1,840.91
6. Step 6: Final answer
   x = 1,768.40