Finding the Fourth Proportional to 1,981.02, 2,968.56 and 1,591.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.02 : 2,968.56 = 1,591.68 : x
2. Step 2: Convert to fraction form
   1,981.02/2,968.56 = 1,591.68/x
3. Step 3: Cross multiply
   1,981.02x = 2,968.56 × 1,591.68
4. Step 4: Simplify right side
   1,981.02x = 4,724,997.58
5. Step 5: Solve for x
   x = 4,724,997.58/1,981.02
6. Step 6: Final answer
   x = 2,385.13