Finding the Fourth Proportional to 1,885.24, 2,601.23 and 1,139.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,885.24 : 2,601.23 = 1,139.05 : x
2. Step 2: Convert to fraction form
   1,885.24/2,601.23 = 1,139.05/x
3. Step 3: Cross multiply
   1,885.24x = 2,601.23 × 1,139.05
4. Step 4: Simplify right side
   1,885.24x = 2,962,925.34
5. Step 5: Solve for x
   x = 2,962,925.34/1,885.24
6. Step 6: Final answer
   x = 1,571.65