Finding the Fourth Proportional to 1,442,078.61, 2,161,225.76 and 1,061,216.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442,078.61 : 2,161,225.76 = 1,061,216.61 : x
2. Step 2: Convert to fraction form
   1,442,078.61/2,161,225.76 = 1,061,216.61/x
3. Step 3: Cross multiply
   1,442,078.61x = 2,161,225.76 × 1,061,216.61
4. Step 4: Simplify right side
   1,442,078.61x = 2,293,528,669,165.79
5. Step 5: Solve for x
   x = 2,293,528,669,165.79/1,442,078.61
6. Step 6: Final answer
   x = 1,590,432.49