Finding the Fourth Proportional to 2,053.08, 2,832.30 and 1,388.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,053.08 : 2,832.30 = 1,388.88 : x
2. Step 2: Convert to fraction form
   2,053.08/2,832.30 = 1,388.88/x
3. Step 3: Cross multiply
   2,053.08x = 2,832.30 × 1,388.88
4. Step 4: Simplify right side
   2,053.08x = 3,933,724.82
5. Step 5: Solve for x
   x = 3,933,724.82/2,053.08
6. Step 6: Final answer
   x = 1,916.01