Finding the Fourth Proportional to 1,526.61, 2,105.61 and 994.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,526.61 : 2,105.61 = 994.50 : x
2. Step 2: Convert to fraction form
   1,526.61/2,105.61 = 994.50/x
3. Step 3: Cross multiply
   1,526.61x = 2,105.61 × 994.50
4. Step 4: Simplify right side
   1,526.61x = 2,094,029.15
5. Step 5: Solve for x
   x = 2,094,029.15/1,526.61
6. Step 6: Final answer
   x = 1,371.69