Finding the Fourth Proportional to 2,235.52, 3,085.05 and 1,240.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,235.52 : 3,085.05 = 1,240.84 : x
2. Step 2: Convert to fraction form
   2,235.52/3,085.05 = 1,240.84/x
3. Step 3: Cross multiply
   2,235.52x = 3,085.05 × 1,240.84
4. Step 4: Simplify right side
   2,235.52x = 3,828,061.95
5. Step 5: Solve for x
   x = 3,828,061.95/2,235.52
6. Step 6: Final answer
   x = 1,712.38