Finding the Fourth Proportional to 1,005,888.72, 1,509,144.76 and 348,674.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,888.72 : 1,509,144.76 = 348,674.56 : x
2. Step 2: Convert to fraction form
   1,005,888.72/1,509,144.76 = 348,674.56/x
3. Step 3: Cross multiply
   1,005,888.72x = 1,509,144.76 × 348,674.56
4. Step 4: Simplify right side
   1,005,888.72x = 526,200,385,169.31
5. Step 5: Solve for x
   x = 526,200,385,169.31/1,005,888.72
6. Step 6: Final answer
   x = 523,119.88