Finding the Fourth Proportional to 1,892.69, 2,611.86 and 1,053.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.69 : 2,611.86 = 1,053.36 : x
2. Step 2: Convert to fraction form
   1,892.69/2,611.86 = 1,053.36/x
3. Step 3: Cross multiply
   1,892.69x = 2,611.86 × 1,053.36
4. Step 4: Simplify right side
   1,892.69x = 2,751,215.79
5. Step 5: Solve for x
   x = 2,751,215.79/1,892.69
6. Step 6: Final answer
   x = 1,453.60