Finding the Fourth Proportional to 2,145,740.16, 2,961,141.56 and 1,178,890.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,740.16 : 2,961,141.56 = 1,178,890.56 : x
2. Step 2: Convert to fraction form
   2,145,740.16/2,961,141.56 = 1,178,890.56/x
3. Step 3: Cross multiply
   2,145,740.16x = 2,961,141.56 × 1,178,890.56
4. Step 4: Simplify right side
   2,145,740.16x = 3,490,861,831,907.67
5. Step 5: Solve for x
   x = 3,490,861,831,907.67/2,145,740.16
6. Step 6: Final answer
   x = 1,626,880.04