Finding the Fourth Proportional to 2,195.86, 3,030.27 and 1,201.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,195.86 : 3,030.27 = 1,201.15 : x
2. Step 2: Convert to fraction form
   2,195.86/3,030.27 = 1,201.15/x
3. Step 3: Cross multiply
   2,195.86x = 3,030.27 × 1,201.15
4. Step 4: Simplify right side
   2,195.86x = 3,639,808.81
5. Step 5: Solve for x
   x = 3,639,808.81/2,195.86
6. Step 6: Final answer
   x = 1,657.58