Finding the Fourth Proportional to 1,575.60, 2,173.32 and 1,109.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.60 : 2,173.32 = 1,109.04 : x
2. Step 2: Convert to fraction form
   1,575.60/2,173.32 = 1,109.04/x
3. Step 3: Cross multiply
   1,575.60x = 2,173.32 × 1,109.04
4. Step 4: Simplify right side
   1,575.60x = 2,410,298.81
5. Step 5: Solve for x
   x = 2,410,298.81/1,575.60
6. Step 6: Final answer
   x = 1,529.77