Finding the Fourth Proportional to 1,810.15, 2,498.28 and 1,147.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.15 : 2,498.28 = 1,147.07 : x
2. Step 2: Convert to fraction form
   1,810.15/2,498.28 = 1,147.07/x
3. Step 3: Cross multiply
   1,810.15x = 2,498.28 × 1,147.07
4. Step 4: Simplify right side
   1,810.15x = 2,865,686.68
5. Step 5: Solve for x
   x = 2,865,686.68/1,810.15
6. Step 6: Final answer
   x = 1,583.12