Finding the Fourth Proportional to 1,588.08, 2,379.49 and 1,123.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,588.08 : 2,379.49 = 1,123.56 : x
2. Step 2: Convert to fraction form
   1,588.08/2,379.49 = 1,123.56/x
3. Step 3: Cross multiply
   1,588.08x = 2,379.49 × 1,123.56
4. Step 4: Simplify right side
   1,588.08x = 2,673,503.30
5. Step 5: Solve for x
   x = 2,673,503.30/1,588.08
6. Step 6: Final answer
   x = 1,683.48