Finding the Fourth Proportional to 1,847.22, 2,547.77 and 1,287.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,847.22 : 2,547.77 = 1,287.69 : x
2. Step 2: Convert to fraction form
   1,847.22/2,547.77 = 1,287.69/x
3. Step 3: Cross multiply
   1,847.22x = 2,547.77 × 1,287.69
4. Step 4: Simplify right side
   1,847.22x = 3,280,731.51
5. Step 5: Solve for x
   x = 3,280,731.51/1,847.22
6. Step 6: Final answer
   x = 1,776.04