Finding the Fourth Proportional to 1,839.83, 2,538.90 and 1,053.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.83 : 2,538.90 = 1,053.72 : x
2. Step 2: Convert to fraction form
   1,839.83/2,538.90 = 1,053.72/x
3. Step 3: Cross multiply
   1,839.83x = 2,538.90 × 1,053.72
4. Step 4: Simplify right side
   1,839.83x = 2,675,289.71
5. Step 5: Solve for x
   x = 2,675,289.71/1,839.83
6. Step 6: Final answer
   x = 1,454.10