Finding the Fourth Proportional to 2,310.45, 3,188.61 and 1,316.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.45 : 3,188.61 = 1,316.04 : x
2. Step 2: Convert to fraction form
   2,310.45/3,188.61 = 1,316.04/x
3. Step 3: Cross multiply
   2,310.45x = 3,188.61 × 1,316.04
4. Step 4: Simplify right side
   2,310.45x = 4,196,338.30
5. Step 5: Solve for x
   x = 4,196,338.30/2,310.45
6. Step 6: Final answer
   x = 1,816.24