Finding the Fourth Proportional to 2,152,156.85, 2,970,110.72 and 1,185,286.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152,156.85 : 2,970,110.72 = 1,185,286.90 : x
2. Step 2: Convert to fraction form
   2,152,156.85/2,970,110.72 = 1,185,286.90/x
3. Step 3: Cross multiply
   2,152,156.85x = 2,970,110.72 × 1,185,286.90
4. Step 4: Simplify right side
   2,152,156.85x = 3,520,433,307,188.58
5. Step 5: Solve for x
   x = 3,520,433,307,188.58/2,152,156.85
6. Step 6: Final answer
   x = 1,635,769.86