Finding the Fourth Proportional to 1,892.68, 2,611.72 and 1,395.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.68 : 2,611.72 = 1,395.59 : x
2. Step 2: Convert to fraction form
   1,892.68/2,611.72 = 1,395.59/x
3. Step 3: Cross multiply
   1,892.68x = 2,611.72 × 1,395.59
4. Step 4: Simplify right side
   1,892.68x = 3,644,880.30
5. Step 5: Solve for x
   x = 3,644,880.30/1,892.68
6. Step 6: Final answer
   x = 1,925.78