Finding the Fourth Proportional to 1,401.93, 2,101.15 and 1,228.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.93 : 2,101.15 = 1,228.93 : x
2. Step 2: Convert to fraction form
   1,401.93/2,101.15 = 1,228.93/x
3. Step 3: Cross multiply
   1,401.93x = 2,101.15 × 1,228.93
4. Step 4: Simplify right side
   1,401.93x = 2,582,166.27
5. Step 5: Solve for x
   x = 2,582,166.27/1,401.93
6. Step 6: Final answer
   x = 1,841.87