Finding the Fourth Proportional to 1,113,962.77, 1,670,976.56 and 272,514.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113,962.77 : 1,670,976.56 = 272,514.25 : x
2. Step 2: Convert to fraction form
   1,113,962.77/1,670,976.56 = 272,514.25/x
3. Step 3: Cross multiply
   1,113,962.77x = 1,670,976.56 × 272,514.25
4. Step 4: Simplify right side
   1,113,962.77x = 455,364,924,015.98
5. Step 5: Solve for x
   x = 455,364,924,015.98/1,113,962.77
6. Step 6: Final answer
   x = 408,779.30