Finding the Fourth Proportional to 1,838.29, 2,538.16 and 1,131.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,838.29 : 2,538.16 = 1,131.08 : x
2. Step 2: Convert to fraction form
   1,838.29/2,538.16 = 1,131.08/x
3. Step 3: Cross multiply
   1,838.29x = 2,538.16 × 1,131.08
4. Step 4: Simplify right side
   1,838.29x = 2,870,856.01
5. Step 5: Solve for x
   x = 2,870,856.01/1,838.29
6. Step 6: Final answer
   x = 1,561.70