Finding the Fourth Proportional to 2,318.76, 3,477.60 and 1,085.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,318.76 : 3,477.60 = 1,085.00 : x
2. Step 2: Convert to fraction form
   2,318.76/3,477.60 = 1,085.00/x
3. Step 3: Cross multiply
   2,318.76x = 3,477.60 × 1,085.00
4. Step 4: Simplify right side
   2,318.76x = 3,773,178.61
5. Step 5: Solve for x
   x = 3,773,178.61/2,318.76
6. Step 6: Final answer
   x = 1,627.24