Finding the Fourth Proportional to 1,653.30, 2,279.58 and 1,298.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,653.30 : 2,279.58 = 1,298.52 : x
2. Step 2: Convert to fraction form
   1,653.30/2,279.58 = 1,298.52/x
3. Step 3: Cross multiply
   1,653.30x = 2,279.58 × 1,298.52
4. Step 4: Simplify right side
   1,653.30x = 2,960,080.22
5. Step 5: Solve for x
   x = 2,960,080.22/1,653.30
6. Step 6: Final answer
   x = 1,790.41