Finding the Fourth Proportional to 1,990.08, 2,967.59 and 1,851.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.08 : 2,967.59 = 1,851.57 : x
2. Step 2: Convert to fraction form
   1,990.08/2,967.59 = 1,851.57/x
3. Step 3: Cross multiply
   1,990.08x = 2,967.59 × 1,851.57
4. Step 4: Simplify right side
   1,990.08x = 5,494,705.25
5. Step 5: Solve for x
   x = 5,494,705.25/1,990.08
6. Step 6: Final answer
   x = 2,761.05