Finding the Fourth Proportional to 2,221.35, 3,065.29 and 1,276.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.35 : 3,065.29 = 1,276.93 : x
2. Step 2: Convert to fraction form
   2,221.35/3,065.29 = 1,276.93/x
3. Step 3: Cross multiply
   2,221.35x = 3,065.29 × 1,276.93
4. Step 4: Simplify right side
   2,221.35x = 3,914,160.76
5. Step 5: Solve for x
   x = 3,914,160.76/2,221.35
6. Step 6: Final answer
   x = 1,762.06