Finding the Fourth Proportional to 1,373.61, 1,897.98 and 1,081.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.61 : 1,897.98 = 1,081.20 : x
2. Step 2: Convert to fraction form
   1,373.61/1,897.98 = 1,081.20/x
3. Step 3: Cross multiply
   1,373.61x = 1,897.98 × 1,081.20
4. Step 4: Simplify right side
   1,373.61x = 2,052,095.98
5. Step 5: Solve for x
   x = 2,052,095.98/1,373.61
6. Step 6: Final answer
   x = 1,493.94