Finding the Fourth Proportional to 1,583.55, 2,185.79 and 1,141.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.55 : 2,185.79 = 1,141.56 : x
2. Step 2: Convert to fraction form
   1,583.55/2,185.79 = 1,141.56/x
3. Step 3: Cross multiply
   1,583.55x = 2,185.79 × 1,141.56
4. Step 4: Simplify right side
   1,583.55x = 2,495,204.72
5. Step 5: Solve for x
   x = 2,495,204.72/1,583.55
6. Step 6: Final answer
   x = 1,575.70