Finding the Fourth Proportional to 1,864.38, 2,572.86 and 1,118.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.38 : 2,572.86 = 1,118.98 : x
2. Step 2: Convert to fraction form
   1,864.38/2,572.86 = 1,118.98/x
3. Step 3: Cross multiply
   1,864.38x = 2,572.86 × 1,118.98
4. Step 4: Simplify right side
   1,864.38x = 2,878,978.88
5. Step 5: Solve for x
   x = 2,878,978.88/1,864.38
6. Step 6: Final answer
   x = 1,544.20