Finding the Fourth Proportional to 2,299.81, 3,171.89 and 1,503.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,299.81 : 3,171.89 = 1,503.07 : x
2. Step 2: Convert to fraction form
   2,299.81/3,171.89 = 1,503.07/x
3. Step 3: Cross multiply
   2,299.81x = 3,171.89 × 1,503.07
4. Step 4: Simplify right side
   2,299.81x = 4,767,549.33
5. Step 5: Solve for x
   x = 4,767,549.33/2,299.81
6. Step 6: Final answer
   x = 2,073.02