Finding the Fourth Proportional to 2,402.55, 3,315.60 and 1,407.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.55 : 3,315.60 = 1,407.33 : x
2. Step 2: Convert to fraction form
   2,402.55/3,315.60 = 1,407.33/x
3. Step 3: Cross multiply
   2,402.55x = 3,315.60 × 1,407.33
4. Step 4: Simplify right side
   2,402.55x = 4,666,143.35
5. Step 5: Solve for x
   x = 4,666,143.35/2,402.55
6. Step 6: Final answer
   x = 1,942.16