Finding the Fourth Proportional to 2,320.18, 3,477.39 and 1,085.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,320.18 : 3,477.39 = 1,085.98 : x
2. Step 2: Convert to fraction form
   2,320.18/3,477.39 = 1,085.98/x
3. Step 3: Cross multiply
   2,320.18x = 3,477.39 × 1,085.98
4. Step 4: Simplify right side
   2,320.18x = 3,776,375.99
5. Step 5: Solve for x
   x = 3,776,375.99/2,320.18
6. Step 6: Final answer
   x = 1,627.62