Finding the Fourth Proportional to 2,142,186.95, 2,956,164.56 and 1,199,189.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,186.95 : 2,956,164.56 = 1,199,189.46 : x
2. Step 2: Convert to fraction form
   2,142,186.95/2,956,164.56 = 1,199,189.46/x
3. Step 3: Cross multiply
   2,142,186.95x = 2,956,164.56 × 1,199,189.46
4. Step 4: Simplify right side
   2,142,186.95x = 3,545,001,375,335.74
5. Step 5: Solve for x
   x = 3,545,001,375,335.74/2,142,186.95
6. Step 6: Final answer
   x = 1,654,851.54