Finding the Fourth Proportional to 1,300.84, 1,802.70 and 1,276.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.84 : 1,802.70 = 1,276.22 : x
2. Step 2: Convert to fraction form
   1,300.84/1,802.70 = 1,276.22/x
3. Step 3: Cross multiply
   1,300.84x = 1,802.70 × 1,276.22
4. Step 4: Simplify right side
   1,300.84x = 2,300,646.30
5. Step 5: Solve for x
   x = 2,300,646.30/1,300.84
6. Step 6: Final answer
   x = 1,768.59