Finding the Fourth Proportional to 1,810.09, 2,498.05 and 1,013.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.09 : 2,498.05 = 1,013.49 : x
2. Step 2: Convert to fraction form
   1,810.09/2,498.05 = 1,013.49/x
3. Step 3: Cross multiply
   1,810.09x = 2,498.05 × 1,013.49
4. Step 4: Simplify right side
   1,810.09x = 2,531,749.96
5. Step 5: Solve for x
   x = 2,531,749.96/1,810.09
6. Step 6: Final answer
   x = 1,398.69