Finding the Fourth Proportional to 1,892.36, 2,611.55 and 1,053.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.36 : 2,611.55 = 1,053.05 : x
2. Step 2: Convert to fraction form
   1,892.36/2,611.55 = 1,053.05/x
3. Step 3: Cross multiply
   1,892.36x = 2,611.55 × 1,053.05
4. Step 4: Simplify right side
   1,892.36x = 2,750,082.30
5. Step 5: Solve for x
   x = 2,750,082.30/1,892.36
6. Step 6: Final answer
   x = 1,453.25