Finding the Fourth Proportional to 2,235.60, 3,085.74 and 1,351.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,235.60 : 3,085.74 = 1,351.98 : x
2. Step 2: Convert to fraction form
   2,235.60/3,085.74 = 1,351.98/x
3. Step 3: Cross multiply
   2,235.60x = 3,085.74 × 1,351.98
4. Step 4: Simplify right side
   2,235.60x = 4,171,858.77
5. Step 5: Solve for x
   x = 4,171,858.77/2,235.60
6. Step 6: Final answer
   x = 1,866.10