Finding the Fourth Proportional to 2,091.33, 2,886.56 and 1,207.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.33 : 2,886.56 = 1,207.01 : x
2. Step 2: Convert to fraction form
   2,091.33/2,886.56 = 1,207.01/x
3. Step 3: Cross multiply
   2,091.33x = 2,886.56 × 1,207.01
4. Step 4: Simplify right side
   2,091.33x = 3,484,086.32
5. Step 5: Solve for x
   x = 3,484,086.32/2,091.33
6. Step 6: Final answer
   x = 1,665.97