Finding the Fourth Proportional to 2,141,728.16, 2,955,557.30 and 1,223,946.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141,728.16 : 2,955,557.30 = 1,223,946.78 : x
2. Step 2: Convert to fraction form
   2,141,728.16/2,955,557.30 = 1,223,946.78/x
3. Step 3: Cross multiply
   2,141,728.16x = 2,955,557.30 × 1,223,946.78
4. Step 4: Simplify right side
   2,141,728.16x = 3,617,444,835,285.59
5. Step 5: Solve for x
   x = 3,617,444,835,285.59/2,141,728.16
6. Step 6: Final answer
   x = 1,689,030.80