Finding the Fourth Proportional to 1,892,238.86, 2,611,628.18 and 1,128,341.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892,238.86 : 2,611,628.18 = 1,128,341.63 : x
2. Step 2: Convert to fraction form
   1,892,238.86/2,611,628.18 = 1,128,341.63/x
3. Step 3: Cross multiply
   1,892,238.86x = 2,611,628.18 × 1,128,341.63
4. Step 4: Simplify right side
   1,892,238.86x = 2,946,808,778,875.28
5. Step 5: Solve for x
   x = 2,946,808,778,875.28/1,892,238.86
6. Step 6: Final answer
   x = 1,557,313.32