Finding the Fourth Proportional to 1,575.23, 2,173.89 and 903.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.23 : 2,173.89 = 903.03 : x
2. Step 2: Convert to fraction form
   1,575.23/2,173.89 = 903.03/x
3. Step 3: Cross multiply
   1,575.23x = 2,173.89 × 903.03
4. Step 4: Simplify right side
   1,575.23x = 1,963,087.89
5. Step 5: Solve for x
   x = 1,963,087.89/1,575.23
6. Step 6: Final answer
   x = 1,246.23