Finding the Fourth Proportional to 2,154,843.42, 2,973,703.17 and 1,188,007.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154,843.42 : 2,973,703.17 = 1,188,007.98 : x
2. Step 2: Convert to fraction form
   2,154,843.42/2,973,703.17 = 1,188,007.98/x
3. Step 3: Cross multiply
   2,154,843.42x = 2,973,703.17 × 1,188,007.98
4. Step 4: Simplify right side
   2,154,843.42x = 3,532,783,096,111.30
5. Step 5: Solve for x
   x = 3,532,783,096,111.30/2,154,843.42
6. Step 6: Final answer
   x = 1,639,461.63