Finding the Fourth Proportional to 2,158,403.34, 2,978,620.71 and 1,191,534.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,403.34 : 2,978,620.71 = 1,191,534.14 : x
2. Step 2: Convert to fraction form
   2,158,403.34/2,978,620.71 = 1,191,534.14/x
3. Step 3: Cross multiply
   2,158,403.34x = 2,978,620.71 × 1,191,534.14
4. Step 4: Simplify right side
   2,158,403.34x = 3,549,128,266,076.04
5. Step 5: Solve for x
   x = 3,549,128,266,076.04/2,158,403.34
6. Step 6: Final answer
   x = 1,644,330.42