Finding the Fourth Proportional to 2,108,865.60, 3,164,659.20 and 1,162,915.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108,865.60 : 3,164,659.20 = 1,162,915.20 : x
2. Step 2: Convert to fraction form
   2,108,865.60/3,164,659.20 = 1,162,915.20/x
3. Step 3: Cross multiply
   2,108,865.60x = 3,164,659.20 × 1,162,915.20
4. Step 4: Simplify right side
   2,108,865.60x = 3,680,230,286,499.84
5. Step 5: Solve for x
   x = 3,680,230,286,499.84/2,108,865.60
6. Step 6: Final answer
   x = 1,745,123.20