Finding the Fourth Proportional to 2,186.50, 3,275.61 and 1,693.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.50 : 3,275.61 = 1,693.76 : x
2. Step 2: Convert to fraction form
   2,186.50/3,275.61 = 1,693.76/x
3. Step 3: Cross multiply
   2,186.50x = 3,275.61 × 1,693.76
4. Step 4: Simplify right side
   2,186.50x = 5,548,097.19
5. Step 5: Solve for x
   x = 5,548,097.19/2,186.50
6. Step 6: Final answer
   x = 2,537.43