Finding the Fourth Proportional to 1,810.18, 2,498.14 and 1,013.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.18 : 2,498.14 = 1,013.45 : x
2. Step 2: Convert to fraction form
   1,810.18/2,498.14 = 1,013.45/x
3. Step 3: Cross multiply
   1,810.18x = 2,498.14 × 1,013.45
4. Step 4: Simplify right side
   1,810.18x = 2,531,739.98
5. Step 5: Solve for x
   x = 2,531,739.98/1,810.18
6. Step 6: Final answer
   x = 1,398.61