Finding the Fourth Proportional to 1,879.94, 2,595.59 and 1,172.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,879.94 : 2,595.59 = 1,172.07 : x
2. Step 2: Convert to fraction form
   1,879.94/2,595.59 = 1,172.07/x
3. Step 3: Cross multiply
   1,879.94x = 2,595.59 × 1,172.07
4. Step 4: Simplify right side
   1,879.94x = 3,042,213.17
5. Step 5: Solve for x
   x = 3,042,213.17/1,879.94
6. Step 6: Final answer
   x = 1,618.25