Finding the Fourth Proportional to 1,810.47, 2,498.72 and 1,147.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.47 : 2,498.72 = 1,147.39 : x
2. Step 2: Convert to fraction form
   1,810.47/2,498.72 = 1,147.39/x
3. Step 3: Cross multiply
   1,810.47x = 2,498.72 × 1,147.39
4. Step 4: Simplify right side
   1,810.47x = 2,866,994.36
5. Step 5: Solve for x
   x = 2,866,994.36/1,810.47
6. Step 6: Final answer
   x = 1,583.56