Finding the Fourth Proportional to 2,109.04, 2,910.40 and 1,177.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.04 : 2,910.40 = 1,177.52 : x
2. Step 2: Convert to fraction form
   2,109.04/2,910.40 = 1,177.52/x
3. Step 3: Cross multiply
   2,109.04x = 2,910.40 × 1,177.52
4. Step 4: Simplify right side
   2,109.04x = 3,427,054.21
5. Step 5: Solve for x
   x = 3,427,054.21/2,109.04
6. Step 6: Final answer
   x = 1,624.94