Finding the Fourth Proportional to 1,501.17, 2,071.74 and 912.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.17 : 2,071.74 = 912.03 : x
2. Step 2: Convert to fraction form
   1,501.17/2,071.74 = 912.03/x
3. Step 3: Cross multiply
   1,501.17x = 2,071.74 × 912.03
4. Step 4: Simplify right side
   1,501.17x = 1,889,489.03
5. Step 5: Solve for x
   x = 1,889,489.03/1,501.17
6. Step 6: Final answer
   x = 1,258.68