Finding the Fourth Proportional to 1,196.98, 1,803.74 and 1,142.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.98 : 1,803.74 = 1,142.30 : x
2. Step 2: Convert to fraction form
   1,196.98/1,803.74 = 1,142.30/x
3. Step 3: Cross multiply
   1,196.98x = 1,803.74 × 1,142.30
4. Step 4: Simplify right side
   1,196.98x = 2,060,411.00
5. Step 5: Solve for x
   x = 2,060,411.00/1,196.98
6. Step 6: Final answer
   x = 1,721.34