Finding the Fourth Proportional to 1,618.38, 2,427.77 and 741.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.38 : 2,427.77 = 741.15 : x
2. Step 2: Convert to fraction form
   1,618.38/2,427.77 = 741.15/x
3. Step 3: Cross multiply
   1,618.38x = 2,427.77 × 741.15
4. Step 4: Simplify right side
   1,618.38x = 1,799,343.59
5. Step 5: Solve for x
   x = 1,799,343.59/1,618.38
6. Step 6: Final answer
   x = 1,111.82