Finding the Fourth Proportional to 2,166,886.89, 2,989,311.89 and 1,403,186.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,886.89 : 2,989,311.89 = 1,403,186.49 : x
2. Step 2: Convert to fraction form
   2,166,886.89/2,989,311.89 = 1,403,186.49/x
3. Step 3: Cross multiply
   2,166,886.89x = 2,989,311.89 × 1,403,186.49
4. Step 4: Simplify right side
   2,166,886.89x = 4,194,562,051,428.43
5. Step 5: Solve for x
   x = 4,194,562,051,428.43/2,166,886.89
6. Step 6: Final answer
   x = 1,935,754.96