Finding the Fourth Proportional to 1,981.16, 2,969.01 and 1,158.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.16 : 2,969.01 = 1,158.30 : x
2. Step 2: Convert to fraction form
   1,981.16/2,969.01 = 1,158.30/x
3. Step 3: Cross multiply
   1,981.16x = 2,969.01 × 1,158.30
4. Step 4: Simplify right side
   1,981.16x = 3,439,015.42
5. Step 5: Solve for x
   x = 3,439,015.42/1,981.16
6. Step 6: Final answer
   x = 1,735.86