Finding the Fourth Proportional to 1,853.34, 2,556.59 and 1,179.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,853.34 : 2,556.59 = 1,179.89 : x
2. Step 2: Convert to fraction form
   1,853.34/2,556.59 = 1,179.89/x
3. Step 3: Cross multiply
   1,853.34x = 2,556.59 × 1,179.89
4. Step 4: Simplify right side
   1,853.34x = 3,016,494.98
5. Step 5: Solve for x
   x = 3,016,494.98/1,853.34
6. Step 6: Final answer
   x = 1,627.60