Finding the Fourth Proportional to 2,158,580.88, 2,978,941.32 and 1,191,848.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,580.88 : 2,978,941.32 = 1,191,848.40 : x
2. Step 2: Convert to fraction form
   2,158,580.88/2,978,941.32 = 1,191,848.40/x
3. Step 3: Cross multiply
   2,158,580.88x = 2,978,941.32 × 1,191,848.40
4. Step 4: Simplify right side
   2,158,580.88x = 3,550,446,445,935.89
5. Step 5: Solve for x
   x = 3,550,446,445,935.89/2,158,580.88
6. Step 6: Final answer
   x = 1,644,805.84