Finding the Fourth Proportional to 2,097.47, 3,127.91 and 1,861.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.47 : 3,127.91 = 1,861.46 : x
2. Step 2: Convert to fraction form
   2,097.47/3,127.91 = 1,861.46/x
3. Step 3: Cross multiply
   2,097.47x = 3,127.91 × 1,861.46
4. Step 4: Simplify right side
   2,097.47x = 5,822,479.35
5. Step 5: Solve for x
   x = 5,822,479.35/2,097.47
6. Step 6: Final answer
   x = 2,775.95