Finding the Fourth Proportional to 1,885.38, 2,601.82 and 1,099.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,885.38 : 2,601.82 = 1,099.90 : x
2. Step 2: Convert to fraction form
   1,885.38/2,601.82 = 1,099.90/x
3. Step 3: Cross multiply
   1,885.38x = 2,601.82 × 1,099.90
4. Step 4: Simplify right side
   1,885.38x = 2,861,741.82
5. Step 5: Solve for x
   x = 2,861,741.82/1,885.38
6. Step 6: Final answer
   x = 1,517.86