Finding the Fourth Proportional to 1,978,070.52, 2,729,737.28 and 1,072,653.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978,070.52 : 2,729,737.28 = 1,072,653.24 : x
2. Step 2: Convert to fraction form
   1,978,070.52/2,729,737.28 = 1,072,653.24/x
3. Step 3: Cross multiply
   1,978,070.52x = 2,729,737.28 × 1,072,653.24
4. Step 4: Simplify right side
   1,978,070.52x = 2,928,061,537,740.79
5. Step 5: Solve for x
   x = 2,928,061,537,740.79/1,978,070.52
6. Step 6: Final answer
   x = 1,480,261.45