Finding the Fourth Proportional to 1,837.59, 2,535.87 and 998.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837.59 : 2,535.87 = 998.30 : x
2. Step 2: Convert to fraction form
   1,837.59/2,535.87 = 998.30/x
3. Step 3: Cross multiply
   1,837.59x = 2,535.87 × 998.30
4. Step 4: Simplify right side
   1,837.59x = 2,531,546.34
5. Step 5: Solve for x
   x = 2,531,546.34/1,837.59
6. Step 6: Final answer
   x = 1,377.64