Finding the Fourth Proportional to 1,258.01, 1,876.06 and 1,118.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258.01 : 1,876.06 = 1,118.15 : x
2. Step 2: Convert to fraction form
   1,258.01/1,876.06 = 1,118.15/x
3. Step 3: Cross multiply
   1,258.01x = 1,876.06 × 1,118.15
4. Step 4: Simplify right side
   1,258.01x = 2,097,716.49
5. Step 5: Solve for x
   x = 2,097,716.49/1,258.01
6. Step 6: Final answer
   x = 1,667.49