Finding the Fourth Proportional to 2,172.18, 3,254.34 and 1,003.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172.18 : 3,254.34 = 1,003.16 : x
2. Step 2: Convert to fraction form
   2,172.18/3,254.34 = 1,003.16/x
3. Step 3: Cross multiply
   2,172.18x = 3,254.34 × 1,003.16
4. Step 4: Simplify right side
   2,172.18x = 3,264,623.71
5. Step 5: Solve for x
   x = 3,264,623.71/2,172.18
6. Step 6: Final answer
   x = 1,502.93