Finding the Fourth Proportional to 1,837.18, 2,535.32 and 997.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837.18 : 2,535.32 = 997.89 : x
2. Step 2: Convert to fraction form
   1,837.18/2,535.32 = 997.89/x
3. Step 3: Cross multiply
   1,837.18x = 2,535.32 × 997.89
4. Step 4: Simplify right side
   1,837.18x = 2,529,957.80
5. Step 5: Solve for x
   x = 2,529,957.80/1,837.18
6. Step 6: Final answer
   x = 1,377.09