Finding the Fourth Proportional to 1,885.33, 2,600.67 and 1,380.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,885.33 : 2,600.67 = 1,380.43 : x
2. Step 2: Convert to fraction form
   1,885.33/2,600.67 = 1,380.43/x
3. Step 3: Cross multiply
   1,885.33x = 2,600.67 × 1,380.43
4. Step 4: Simplify right side
   1,885.33x = 3,590,042.89
5. Step 5: Solve for x
   x = 3,590,042.89/1,885.33
6. Step 6: Final answer
   x = 1,904.20