Finding the Fourth Proportional to 2,109.48, 2,907.18 and 1,642.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.48 : 2,907.18 = 1,642.92 : x
2. Step 2: Convert to fraction form
   2,109.48/2,907.18 = 1,642.92/x
3. Step 3: Cross multiply
   2,109.48x = 2,907.18 × 1,642.92
4. Step 4: Simplify right side
   2,109.48x = 4,776,264.17
5. Step 5: Solve for x
   x = 4,776,264.17/2,109.48
6. Step 6: Final answer
   x = 2,264.19