Finding the Fourth Proportional to 1,907.86, 2,862.72 and 933.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,907.86 : 2,862.72 = 933.43 : x
2. Step 2: Convert to fraction form
   1,907.86/2,862.72 = 933.43/x
3. Step 3: Cross multiply
   1,907.86x = 2,862.72 × 933.43
4. Step 4: Simplify right side
   1,907.86x = 2,672,148.73
5. Step 5: Solve for x
   x = 2,672,148.73/1,907.86
6. Step 6: Final answer
   x = 1,400.60