Finding the Fourth Proportional to 2,620.61, 3,933.50 and 1,925.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.61 : 3,933.50 = 1,925.32 : x
2. Step 2: Convert to fraction form
   2,620.61/3,933.50 = 1,925.32/x
3. Step 3: Cross multiply
   2,620.61x = 3,933.50 × 1,925.32
4. Step 4: Simplify right side
   2,620.61x = 7,573,246.22
5. Step 5: Solve for x
   x = 7,573,246.22/2,620.61
6. Step 6: Final answer
   x = 2,889.88