Finding the Fourth Proportional to 2,145,817.78, 2,961,079.23 and 1,178,988.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,817.78 : 2,961,079.23 = 1,178,988.82 : x
2. Step 2: Convert to fraction form
   2,145,817.78/2,961,079.23 = 1,178,988.82/x
3. Step 3: Cross multiply
   2,145,817.78x = 2,961,079.23 × 1,178,988.82
4. Step 4: Simplify right side
   2,145,817.78x = 3,491,079,304,322.72
5. Step 5: Solve for x
   x = 3,491,079,304,322.72/2,145,817.78
6. Step 6: Final answer
   x = 1,626,922.54