Finding the Fourth Proportional to 1,892.58, 2,610.63 and 1,396.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.58 : 2,610.63 = 1,396.50 : x
2. Step 2: Convert to fraction form
   1,892.58/2,610.63 = 1,396.50/x
3. Step 3: Cross multiply
   1,892.58x = 2,610.63 × 1,396.50
4. Step 4: Simplify right side
   1,892.58x = 3,645,744.80
5. Step 5: Solve for x
   x = 3,645,744.80/1,892.58
6. Step 6: Final answer
   x = 1,926.34