Finding the Fourth Proportional to 1,892.95, 2,612.15 and 1,053.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.95 : 2,612.15 = 1,053.61 : x
2. Step 2: Convert to fraction form
   1,892.95/2,612.15 = 1,053.61/x
3. Step 3: Cross multiply
   1,892.95x = 2,612.15 × 1,053.61
4. Step 4: Simplify right side
   1,892.95x = 2,752,187.36
5. Step 5: Solve for x
   x = 2,752,187.36/1,892.95
6. Step 6: Final answer
   x = 1,453.91