Finding the Fourth Proportional to 1,536.06, 2,119.72 and 906.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,536.06 : 2,119.72 = 906.69 : x
2. Step 2: Convert to fraction form
   1,536.06/2,119.72 = 906.69/x
3. Step 3: Cross multiply
   1,536.06x = 2,119.72 × 906.69
4. Step 4: Simplify right side
   1,536.06x = 1,921,936.31
5. Step 5: Solve for x
   x = 1,921,936.31/1,536.06
6. Step 6: Final answer
   x = 1,251.21