Finding the Fourth Proportional to 1,935.27, 2,669.61 and 1,225.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,935.27 : 2,669.61 = 1,225.81 : x
2. Step 2: Convert to fraction form
   1,935.27/2,669.61 = 1,225.81/x
3. Step 3: Cross multiply
   1,935.27x = 2,669.61 × 1,225.81
4. Step 4: Simplify right side
   1,935.27x = 3,272,434.63
5. Step 5: Solve for x
   x = 3,272,434.63/1,935.27
6. Step 6: Final answer
   x = 1,690.94