Finding the Fourth Proportional to 3,447.30, 5,171.15 and 981.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,447.30 : 5,171.15 = 981.93 : x
2. Step 2: Convert to fraction form
   3,447.30/5,171.15 = 981.93/x
3. Step 3: Cross multiply
   3,447.30x = 5,171.15 × 981.93
4. Step 4: Simplify right side
   3,447.30x = 5,077,707.32
5. Step 5: Solve for x
   x = 5,077,707.32/3,447.30
6. Step 6: Final answer
   x = 1,472.95