Finding the Fourth Proportional to 2,105,359.56, 2,905,330.66 and 1,187,574.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,359.56 : 2,905,330.66 = 1,187,574.98 : x
2. Step 2: Convert to fraction form
   2,105,359.56/2,905,330.66 = 1,187,574.98/x
3. Step 3: Cross multiply
   2,105,359.56x = 2,905,330.66 × 1,187,574.98
4. Step 4: Simplify right side
   2,105,359.56x = 3,450,298,000,442.89
5. Step 5: Solve for x
   x = 3,450,298,000,442.89/2,105,359.56
6. Step 6: Final answer
   x = 1,638,816.51