Finding the Fourth Proportional to 1,839.53, 2,538.79 and 1,053.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.53 : 2,538.79 = 1,053.56 : x
2. Step 2: Convert to fraction form
   1,839.53/2,538.79 = 1,053.56/x
3. Step 3: Cross multiply
   1,839.53x = 2,538.79 × 1,053.56
4. Step 4: Simplify right side
   1,839.53x = 2,674,771.31
5. Step 5: Solve for x
   x = 2,674,771.31/1,839.53
6. Step 6: Final answer
   x = 1,454.05