Finding the Fourth Proportional to 1,820.67, 2,726.52 and 1,038.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.67 : 2,726.52 = 1,038.74 : x
2. Step 2: Convert to fraction form
   1,820.67/2,726.52 = 1,038.74/x
3. Step 3: Cross multiply
   1,820.67x = 2,726.52 × 1,038.74
4. Step 4: Simplify right side
   1,820.67x = 2,832,145.38
5. Step 5: Solve for x
   x = 2,832,145.38/1,820.67
6. Step 6: Final answer
   x = 1,555.55