Finding the Fourth Proportional to 1,886,402.89, 2,603,892.06 and 1,122,440.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886,402.89 : 2,603,892.06 = 1,122,440.05 : x
2. Step 2: Convert to fraction form
   1,886,402.89/2,603,892.06 = 1,122,440.05/x
3. Step 3: Cross multiply
   1,886,402.89x = 2,603,892.06 × 1,122,440.05
4. Step 4: Simplify right side
   1,886,402.89x = 2,922,712,734,021.00
5. Step 5: Solve for x
   x = 2,922,712,734,021.00/1,886,402.89
6. Step 6: Final answer
   x = 1,549,357.64