Finding the Fourth Proportional to 2,158,048.88, 2,978,157.48 and 1,191,194

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,048.88 : 2,978,157.48 = 1,191,194 : x
2. Step 2: Convert to fraction form
   2,158,048.88/2,978,157.48 = 1,191,194/x
3. Step 3: Cross multiply
   2,158,048.88x = 2,978,157.48 × 1,191,194
4. Step 4: Simplify right side
   2,158,048.88x = 3,547,563,321,231.12
5. Step 5: Solve for x
   x = 3,547,563,321,231.12/2,158,048.88
6. Step 6: Final answer
   x = 1,643,875.33