Finding the Fourth Proportional to 1,356.82, 1,873.74 and 1,159.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.82 : 1,873.74 = 1,159.18 : x
2. Step 2: Convert to fraction form
   1,356.82/1,873.74 = 1,159.18/x
3. Step 3: Cross multiply
   1,356.82x = 1,873.74 × 1,159.18
4. Step 4: Simplify right side
   1,356.82x = 2,172,001.93
5. Step 5: Solve for x
   x = 2,172,001.93/1,356.82
6. Step 6: Final answer
   x = 1,600.80