Finding the Fourth Proportional to 1,838.60, 2,537.72 and 1,053.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,838.60 : 2,537.72 = 1,053.12 : x
2. Step 2: Convert to fraction form
   1,838.60/2,537.72 = 1,053.12/x
3. Step 3: Cross multiply
   1,838.60x = 2,537.72 × 1,053.12
4. Step 4: Simplify right side
   1,838.60x = 2,672,523.69
5. Step 5: Solve for x
   x = 2,672,523.69/1,838.60
6. Step 6: Final answer
   x = 1,453.56