Finding the Fourth Proportional to 1,112.01, 1,667.81 and 591.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.01 : 1,667.81 = 591.39 : x
2. Step 2: Convert to fraction form
   1,112.01/1,667.81 = 591.39/x
3. Step 3: Cross multiply
   1,112.01x = 1,667.81 × 591.39
4. Step 4: Simplify right side
   1,112.01x = 986,323.20
5. Step 5: Solve for x
   x = 986,323.20/1,112.01
6. Step 6: Final answer
   x = 886.97