Finding the Fourth Proportional to 1,892.06, 2,610.06 and 1,145.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.06 : 2,610.06 = 1,145.60 : x
2. Step 2: Convert to fraction form
   1,892.06/2,610.06 = 1,145.60/x
3. Step 3: Cross multiply
   1,892.06x = 2,610.06 × 1,145.60
4. Step 4: Simplify right side
   1,892.06x = 2,990,084.74
5. Step 5: Solve for x
   x = 2,990,084.74/1,892.06
6. Step 6: Final answer
   x = 1,580.33