Finding the Fourth Proportional to 2,117.60, 2,922.42 and 1,835.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.60 : 2,922.42 = 1,835.72 : x
2. Step 2: Convert to fraction form
   2,117.60/2,922.42 = 1,835.72/x
3. Step 3: Cross multiply
   2,117.60x = 2,922.42 × 1,835.72
4. Step 4: Simplify right side
   2,117.60x = 5,364,744.84
5. Step 5: Solve for x
   x = 5,364,744.84/2,117.60
6. Step 6: Final answer
   x = 2,533.41