Finding the Fourth Proportional to 2,158,201.56, 2,978,388.64 and 1,178,192.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,201.56 : 2,978,388.64 = 1,178,192.84 : x
2. Step 2: Convert to fraction form
   2,158,201.56/2,978,388.64 = 1,178,192.84/x
3. Step 3: Cross multiply
   2,158,201.56x = 2,978,388.64 × 1,178,192.84
4. Step 4: Simplify right side
   2,158,201.56x = 3,509,116,170,385.34
5. Step 5: Solve for x
   x = 3,509,116,170,385.34/2,158,201.56
6. Step 6: Final answer
   x = 1,625,944.60