Finding the Fourth Proportional to 1,521.37, 2,098.87 and 997.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.37 : 2,098.87 = 997.71 : x
2. Step 2: Convert to fraction form
   1,521.37/2,098.87 = 997.71/x
3. Step 3: Cross multiply
   1,521.37x = 2,098.87 × 997.71
4. Step 4: Simplify right side
   1,521.37x = 2,094,063.59
5. Step 5: Solve for x
   x = 2,094,063.59/1,521.37
6. Step 6: Final answer
   x = 1,376.43