Finding the Fourth Proportional to 3,917.22, 5,875.20 and 1,284.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,917.22 : 5,875.20 = 1,284.69 : x
2. Step 2: Convert to fraction form
   3,917.22/5,875.20 = 1,284.69/x
3. Step 3: Cross multiply
   3,917.22x = 5,875.20 × 1,284.69
4. Step 4: Simplify right side
   3,917.22x = 7,547,810.69
5. Step 5: Solve for x
   x = 7,547,810.69/3,917.22
6. Step 6: Final answer
   x = 1,926.83