Finding the Fourth Proportional to 1,501.05, 2,071.34 and 903.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.05 : 2,071.34 = 903.58 : x
2. Step 2: Convert to fraction form
   1,501.05/2,071.34 = 903.58/x
3. Step 3: Cross multiply
   1,501.05x = 2,071.34 × 903.58
4. Step 4: Simplify right side
   1,501.05x = 1,871,615.09
5. Step 5: Solve for x
   x = 1,871,615.09/1,501.05
6. Step 6: Final answer
   x = 1,246.87