Finding the Fourth Proportional to 1,347.68, 2,018.42 and 981.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,347.68 : 2,018.42 = 981.56 : x
2. Step 2: Convert to fraction form
   1,347.68/2,018.42 = 981.56/x
3. Step 3: Cross multiply
   1,347.68x = 2,018.42 × 981.56
4. Step 4: Simplify right side
   1,347.68x = 1,981,200.34
5. Step 5: Solve for x
   x = 1,981,200.34/1,347.68
6. Step 6: Final answer
   x = 1,470.08