Finding the Fourth Proportional to 1,892.58, 2,611.91 and 1,053.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.58 : 2,611.91 = 1,053.35 : x
2. Step 2: Convert to fraction form
   1,892.58/2,611.91 = 1,053.35/x
3. Step 3: Cross multiply
   1,892.58x = 2,611.91 × 1,053.35
4. Step 4: Simplify right side
   1,892.58x = 2,751,255.40
5. Step 5: Solve for x
   x = 2,751,255.40/1,892.58
6. Step 6: Final answer
   x = 1,453.71