Finding the Fourth Proportional to 2,112.89, 2,912.29 and 1,588.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.89 : 2,912.29 = 1,588.01 : x
2. Step 2: Convert to fraction form
   2,112.89/2,912.29 = 1,588.01/x
3. Step 3: Cross multiply
   2,112.89x = 2,912.29 × 1,588.01
4. Step 4: Simplify right side
   2,112.89x = 4,624,727.11
5. Step 5: Solve for x
   x = 4,624,727.11/2,112.89
6. Step 6: Final answer
   x = 2,188.82