Finding the Fourth Proportional to 1,984.05, 2,739.27 and 1,276.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.05 : 2,739.27 = 1,276.21 : x
2. Step 2: Convert to fraction form
   1,984.05/2,739.27 = 1,276.21/x
3. Step 3: Cross multiply
   1,984.05x = 2,739.27 × 1,276.21
4. Step 4: Simplify right side
   1,984.05x = 3,495,883.77
5. Step 5: Solve for x
   x = 3,495,883.77/1,984.05
6. Step 6: Final answer
   x = 1,761.99