Finding the Fourth Proportional to 1,870.72, 2,580.93 and 1,124.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.72 : 2,580.93 = 1,124.11 : x
2. Step 2: Convert to fraction form
   1,870.72/2,580.93 = 1,124.11/x
3. Step 3: Cross multiply
   1,870.72x = 2,580.93 × 1,124.11
4. Step 4: Simplify right side
   1,870.72x = 2,901,249.22
5. Step 5: Solve for x
   x = 2,901,249.22/1,870.72
6. Step 6: Final answer
   x = 1,550.87